[Federal Register Volume 60, Number 152 (Tuesday, August 8, 1995)]
[Rules and Regulations]
[Pages 40420-40444]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-18999]




[[Page 40419]]

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Part III





Environmental Protection Agency





_______________________________________________________________________



40 CFR Part 82



Protection of Stratospheric Ozone: Supplemental Rule to Amend Leak 
Repair Provisions Under Section 608 of the Clean Air Act; Final Rule

  Federal Register / Vol. 60, No. 152 / Tuesday, August 8, 1995 / Rules 
and Regulations   

[[Page 40420]]


ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 82

[FRL-5267-3]
RIN 2060-AE92


Protection of Stratospheric Ozone: Supplemental Rule to Amend 
Leak Repair Provisions Under Section 608 of the Clean Air Act

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: Through this action EPA is amending the Refrigerant Recycling 
Regulations promulgated under section 608 of the Clean Air Act 
Amendments of 1990. This action is being undertaken to address specific 
concerns regarding the leak repair requirements for industrial process 
refrigeration systems, pursuant to a settlement agreement with the 
Chemical Manufacturers Association (CMA). This action will affect the 
owners and operators of industrial process refrigeration with regard to 
leak repair provisions. Certain aspects of this action will also affect 
federal owners and operators of commercial and comfort-cooling 
refrigeration with charges of 50 pounds of refrigerant or greater. This 
action provides greater flexibility to owners and operators of 
industrial process sources and to some federally-owned commercial and 
comfort-cooling refrigerant sources with regard to leak repair 
provisions. EPA is providing this flexibility without compromising the 
goals of protecting public health and the environment.

EFFECTIVE DATE: September 7, 1995.

ADDRESSES: Comments on this action are contained in the Air Docket 
Office, Public Docket No. A-92-01 VIIID, Waterside Mall (Ground Floor) 
Environmental Protection Agency, 401 M Street, SW., Washington, DC 
20460 in room M-1500. Additional comments and materials supporting this 
rulemaking are contained in Public Docket No. A-92-01. Dockets may be 
inspected from 8 a.m. until 5:30 p.m., Monday through Friday. A 
reasonable fee may be charged for copying docket materials.

FOR FURTHER INFORMATION CONTACT: Cindy Newberg, Regulatory Development 
Section, Program Implementation Branch, Stratospheric Protection 
Division, Office of Atmospheric Programs, Office of Air and Radiation 
(6205-J), 401 M Street, SW., Washington, DC 20460, (202) 233-9729. The 
Stratospheric Ozone Information Hotline at 1-800-296-1996 can also be 
contacted for further information.

SUPPLEMENTARY INFORMATION: The contents of this preamble are listed in 
the following outline:

I. Refrigerant Recycling Regulations
II. This Rule
III. Notice of Proposed Rulemaking
IV. Summary of Major Comments Received
V. Response to Comments
    A. Legal Authority
    B. Contracted Employees
    C. Nuclear Power
    D. Definition of Industrial Process Refrigeration Equipment and 
the Need for Separate Leak Repair Requirements
    E. Repairing Appliances
    1. Repair Attempts
    2. Timeframes for Repairing Leaks
    3. Determining the Full Charge of Refrigerant
    4. Best Efforts
    5. Static and Dynamic Tests
    6. Fixing Other Leaks
    F. Industrial Process Shutdown
    G. Retrofitting or Replacing Equipment
    H. Recordkeeping and Reporting Requirements
    I. Purged Refrigerants
    J. Federally-Owned Chillers
    K. Mothballing
    L. Grandfathering
    M. Terminology
    N. Regulatory Impact Analysis
    O. Allowing Appliances To Be Pressurized To Slightly Above O 
PSIG
VI. Judicial Review
VII. Administrative Requirements
    A. Executive Order 12866
    B. Unfunded Mandates Act
    C. Paperwork Reduction Act
    D. Regulatory Flexibility Act

I. Refrigerant Recycling Regulations

    Final regulations promulgated by the U.S. Environmental Protection 
Agency (EPA) under section 608 of the Clean Air Act Amendments of 1990 
(the Act), published on May 14, 1993 (58 FR 28660), establish a 
recycling program for ozone-depleting refrigerants recovered during the 
servicing and disposal of air-conditioning and refrigeration equipment. 
Together with the prohibition on venting during the maintenance, 
service, repair and disposal of class I and class II substances (see 
the listing notice January 22, 1991; 56 FR 2420) that took effect on 
July 1, 1992, these regulations are intended to substantially reduce 
the emissions of ozone-depleting refrigerants. These regulations were 
subsequently revised in the final regulations published August 19, 1994 
(59 FR 42950), November 9, 1994 (59 FR 55912), and March 17, 1995 (60 
FR 14607).
    The current regulations require that persons servicing air-
conditioning and refrigeration equipment observe certain service 
practices to reduce emissions, establish equipment and reclamation 
certification requirements, and comply with a technician certification 
requirement. The regulations also require that ozone-depleting 
compounds contained in appliances be removed prior to disposal of the 
appliances, and that all air-conditioning and refrigeration equipment, 
except for small appliances, be provided with a servicing aperture that 
will facilitate recovery of refrigerant.
    The May 14, 1993 regulations establish leak repair requirements to 
further minimize emissions of class I and class II substances. The rule 
states that appliances that normally hold a refrigerant charge of fifty 
pounds or more are subject to the leak repair requirements. An annual 
leak rate of 35 percent was established for industrial process sources 
and commercial chillers, while an annual leak rate of 15 percent was 
established for comfort-cooling. Where the leak rate is exceeded, the 
appliance must be repaired within 30 days. An alternative is to develop 
a retrofit or replacement plan within 30 days, outlining action to 
retrofit or replace the appliance within one year from the exceedance.
    The NPRM proposed revisions to the leak repair provisions in 
response to a settlement agreement reached by the Agency and the 
Chemical Manufacturers Association (CMA) specifically for industrial 
process refrigerant equipment. In that settlement, EPA agreed to 
propose changes to the leak repair requirements that would provide 
additional time to repair and/or retrofit industrial process 
refrigeration equipment based on the uniqueness of the industrial 
process sector and on new information provided by CMA. EPA also agreed 
to propose revising the evacuation requirements for oil changes to 
permit for slight positive pressure, not to exceed 5 PSIG. Finally, EPA 
agreed to clarify that purged emissions that have been captured and 
destroyed should be excluded from the leak rate calculations.
    The information received from CMA after the completion of the 
initial rulemaking indicated that under certain circumstances the 
timelines for repairing leaky industrial process refrigeration 
equipment or to retrofit such equipment are not achievable. The 
proposed rulemaking was developed to respond to those circumstances by 
proposing the shortest timeframes achievable for this sector and to 
relax the requirements for oil changes as well as to permit for the 
exclusion of destroyed purged refrigerants.

[[Page 40421]]

    The NPRM also proposed several other changes to the regulations, 
including an exemption for federally-owned chillers under certain 
circumstances. The NPRM is discussed in further detail in the following 
section.
    The recycling rule, 40 CFR, part 82, subpart F, was only re-opened 
for purposes of reconsidering the specific provisions outlined in the 
NPRM and discussed in this final action. EPA did not invite comments on 
any other provisions of the recycling rule. However, in separate 
actions EPA has recently addressed a stay on the sales restriction for 
split systems (60 FR 24676), and an extension of the reclamation 
requirements (60 FR 14607). In addition, EPA plans in the future to 
consider additional changes to the requirements under 40 CFR, part 82, 
subpart F, including:
     Reconsideration of the sales restriction for split systems 
and pre-charged parts;
     The adoption of an industry off-site recycling standard; 
and
     Requirements for recovering alternative substances to 
class I and class II refrigerants unless the Administrator determines 
that venting, releasing or disposing of the substitute refrigerants do 
not pose a threat to the environment.
    These issues will be addressed in separate rulemakings that will 
follow appropriate notice and comment procedures.

II. This Rule

    This final rule affects the owners and operators of industrial 
process refrigeration equipment that normally contain a charge of 50 
pounds or more of a class I or class II refrigerant. Today's action 
will provide the owners and operators with greater flexibility in 
repairing leaks and retrofitting leaky appliances. EPA will permit the 
owner or operator to have more than 30 days to complete repairs and 
more than one year to retrofit appliances where the conditions 
described in this final rule apply.
    Through this final action EPA is also clarifying that the owners 
and operators of all appliances subject to the leak repair provisions 
must only reduce leak rates to below the allowable leaks.
    In addition, this action will permit additional time beyond the 30-
day leak repair period for federally-owned chillers where the chillers 
are located in areas subject to radiological contamination. EPA will 
also permit additional time beyond the one-year retrofit period if 
appropriations and procurement requirements limit the feasibility of 
completing the retrofit activities within one year.
    Finally, this rule will permit the owners or operators to evacuate 
appliances to slightly above atmospheric pressure, specifically to a 
pressure not exceeding 5 psig, to perform oil changes. Alternatively, 
EPA will permit the owner or operator to recover the oil to a system 
receiver where the receiver will be evacuated to atmospheric pressure.
    This statement in conjunction with the NPRM, serves as the 
statement of basis and purpose under Sec. 307 of the Act.

III. Notice of Proposed Rulemaking

    On January 19, 1995, EPA published a notice of proposed rulemaking 
(NPRM) (60 FR 3992) concerning proposed revisions to the leak repair 
requirements promulgated under section 608. Below is a summary of the 
NPRM.
    EPA proposed to permit the owners and operators of industrial 
process refrigeration equipment more than 30 days to repair leaks when 
the necessary parts are unavailable, or if requirements of other 
federal, state or local regulations make a repair within 30 days 
impossible. Only the time necessary to receive delivery of any 
necessary parts or comply with any applicable regulations would be 
permitted. The NPRM specified that the owner or operator of the 
industrial process refrigeration equipment would have to exert best 
efforts to repair leaks within the 30-day time period. If the equipment 
could not be repaired within the 30-day requirement, the owner or 
operator would have to document repair efforts, notify EPA of the 
inability to comply, provide appropriate information concerning the 
reason for the inability to complete the repairs and develop to EPA a 
one-year retrofit, replacement, or retirement plan for the leaky 
appliance. The NPRM stated that the owners or operators of the 
industrial process refrigeration equipment would be required to 
maintain records concerning their actions and submit specific 
information to EPA that details the need for additional time to 
complete the repair work. These records are discussed in further detail 
in the NPRM (60 FR 3994).
    In order to complete many types of repairs, industrial process 
refrigeration equipment may need to be shut down. EPA proposed a 120-
day repair period, rather than a 30-day repair period, where an 
industrial process shutdown is necessary to repair a leak or leaks from 
industrial process refrigeration equipment.
    EPA proposed three methods for owners and operators of industrial 
process refrigeration equipment to determine the full charge of 
refrigerant in the appliance and therefore, be able to calculate the 
leak rate. Two additional methods for these calculations were also 
discussed but were not proposed. The methods EPA proposed were: (1) To 
rely on the manufacturers' determinations, (2) to require the owner or 
operator to do calculations based on component sizes, flow rates, 
pressures, and other considerations, and/or (3) to rely on actual 
measurements of the amount of refrigerant added or evacuated from 
industrial process refrigeration equipment. These and other methods are 
discussed in greater detail in the NPRM (60 FR 3995).
    EPA proposed that the repair efforts required for industrial 
process refrigeration equipment be those that sound engineering 
judgment indicates will be sufficient to bring the leak rate below a 35 
percent annual rate, that a static test be conducted at the conclusion 
of the repairs to determine whether the repairs undertaken were 
successfully completed, and that a dynamic test be conducted within 30 
days of bringing the system back on-line (if taken off-line) or within 
30 days of completing the actual repairs, but no sooner than when the 
system has achieved steady-state operating characteristics. If the 
dynamic test indicates that the repairs have not been successfully 
completed, EPA proposed that the owner would be subject to a 
requirement to retrofit or replace the appliance within one year of the 
failure to verify that the repairs had been successfully completed or 
such longer time period as may be granted. Furthermore, EPA proposed 
that the owner or operator notify EPA of the failure within 30 days of 
the failed dynamic verification test. Proposed definitions of static 
and dynamic tests and examples of these tests are discussed in the NPRM 
(60 FR 3996).
    Industrial process refrigeration systems have many potential 
sources of leaks. The NPRM stated that if a sufficient number of other 
leaks can be repaired creating a situation where the originally 
identified leak or leaks remain, but the overall leak rate has been 
successfully reduced to below 35 percent per year, the owner or 
operator has still in effect met its obligation under the rule. 
Therefore, EPA proposed that the owner or operator of an industrial 
process refrigeration unit be relieved of the obligation to retrofit or 
replace the appliance if, within 180 days of the failed dynamic 
verification 

[[Page 40422]]
test, the owner or operator establishes that the appliance's annual 
leak rate does not exceed 35 percent. If the equipment owner or 
operator establishes that the appliance's annual leak rate does not 
exceed 35 percent, the owner or operator would be required to notify 
EPA within 30 days of that determination and the owner or operator 
would no longer be subject to the obligation to retrofit or replace the 
appliance that arose as a consequence of the initial failure to repair 
the leak or leaks successfully. The determination of whether the 
appliance's annual leak rate exceeds 35 percent would be determined in 
accordance with parameters identified by the owner or operator in its 
notice to EPA regarding the failure of the initial dynamic verification 
test.
    EPA proposed to clarify that for industrial process and commercial 
sources, leaks need to be repaired such that the leak rate is brought 
back to a level below the 35 percent annual rate. A parallel 
clarification for comfort-cooling and commercial sources also was 
proposed. Therefore, rather than requiring that ``all'' leaks be 
repaired, EPA proposed revising the requirements to reduce leaks to a 
rate below the acceptable thresholds. EPA would permit leaky appliances 
to operate as long as the leak rate does not exceed that amount.
    In the NPRM, EPA stated that it may be reasonable to permit 
additional time beyond the one-year established by the current 
regulations for the retrofitting of certain industrial process 
refrigeration equipment. EPA believes there are specific concerns 
relating to the need for special design, engineering, ordering and 
installation difficulties for some industrial process refrigeration 
equipment. EPA proposed to allow more than one year to complete the 
retrofit of industrial process refrigeration equipment in certain 
circumstances. The NPRM describes scenarios that may justify more than 
one year to retrofit an appliance; however, EPA does not believe 
additional time is always necessary. Therefore, EPA intended to permit 
additional time only when the owners or operators of the industrial 
process refrigeration equipment can provide information detailing the 
need for additional time in accordance with the proposed requirements 
described below.
    EPA proposed that additional time, to the extent reasonably 
necessary, would be allowed due to delays occasioned by the 
requirements of other applicable federal, state, or local regulations, 
or due to the unavailability of a suitable replacement refrigerant with 
a lower ozone depletion potential. The suitability of a replacement 
refrigerant is discussed in the NPRM (60 FR 4000). The owner or 
operator of the facility would have to notify EPA within six months 
after the 30-day period following the discovery of an exceedance of the 
35 percent leak rate. Records that would provide evidence that other 
regulations or the unavailability of a suitable alternative refrigerant 
prevent retrofit or replacement within one year must be submitted to 
EPA to allow EPA to determine that these provisions apply and assess 
the length of time necessary to complete the work. EPA proposed that it 
notify the owner or operator of its determination within 60 days of 
submittal. The limited recordkeeping requirements are discussed in the 
NPRM (60 FR 4000). EPA proposed that such records be maintained by the 
owner or operator and kept on-site.
    EPA proposed that an additional one-year period beyond the initial 
one-year retrofit period be allowed for industrial process 
refrigeration equipment if four criteria are met: (1) The new or 
retrofitted refrigeration system is custom-built (meaning if it or any 
of its critical components cannot be purchased and/or installed without 
being specifically designed), fabricated and/or assembled to satisfy a 
specific set of industrial process conditions; (2) the supplier of the 
system of one or more of its critical components has quoted a delivery 
time of more than 30 weeks from when the order is placed; (3) the owner 
or operator notifies EPA within six months of the expiration of the 30-
day period following the discovery of an exceedance of the 35 percent 
leak rate to identify the owner or operator, describe the appliance 
involved, explain why more than one year is needed, and demonstrate 
that the first two criteria are met; and (4) the owner or operator 
maintains records adequate to allow a determination that the criteria 
are met. The criteria are further discussed in the NPRM (60 FR 4000).
    EPA proposed that if more than one additional year is needed, the 
owner may request to extend the deadline for completing all retrofit or 
replacement action. EPA proposed that such a request be submitted to 
EPA before the end of the ninth month of the additional year that was 
granted to retrofit, replace, or retire the appliance. The request 
would be required to include revisions to that information submitted 
for the first additional year as proposed under Sec. 82.166(o). Unless 
EPA objects to the request within 30 days of receipt, it would be 
deemed approved. EPA stated that this extension would be granted only 
in cases where the actual nature of the retrofit or replacement 
activities is such that the additional time beyond the one year is 
crucial. The submittal of revised information is discussed in the NPRM 
(60 FR 4002).
    EPA proposed to allow owners or operators to evacuate the appliance 
to slightly above atmospheric pressure, specifically to a pressure not 
exceeding 5 psig, to perform oil changes. Reasons for this approach are 
described in the NPRM (60 FR 4002).
    The NPRM stated that EPA would like to clarify that the Agency 
interprets the 35 percent leak rate in the regulations as not including 
emissions of purged refrigerant that are destroyed, if their 
destruction is accounted for and can be verified by records maintained 
by the owners or operators of the industrial process refrigeration 
equipment. If purged refrigerant is destroyed using one of the five 
destruction technologies approved by the Parties to the Montreal 
Protocol, EPA can consider that refrigerant to have been destroyed and 
therefore, not part of the leak rate for the system. A description of 
the methods for destroying refrigerant and the how industrial process 
refrigeration systems could measure purged refrigerants is contained in 
the NPRM (60 FR 4003).
    In the NPRM (60 FR 4003), EPA described temporarily mothballing 
equipment. If a facility is temporarily mothballed, EPA believes it is 
appropriate to suspend the time-relevant repair and/or retrofit 
requirements while the facility is effectively inoperative. In the same 
subsection, EPA described how temporarily mothballing is not equivalent 
to having an appliance taken off-line or to an industrial process 
shutdown. EPA proposed that while temporarily mothballed, the time-
relevant repair and/or retrofit requirements would be suspended.
    EPA proposed that owners or operators of a federally-owned 
refrigerant appliance be able to submit a request for extensions 
parallel to those outlined for industrial process refrigeration 
equipment, based on the hindrance of federal procurement requirements. 
If additional time is granted, EPA proposed that testing and 
documentation should occur, parallel to those for industrial process 
refrigeration equipment. The reasons for this proposed extension are 
discussed in detail in the NPRM (60 FR 4004).

IV. Summary of Major Comments Received

    During the public comment period EPA received fourteen sets of 
comments that are addressed in this action. In 

[[Page 40423]]
addition, EPA received and considered additional comments submitted to 
the Agency after the 30-day public comment period ended. All comments 
considered in this final action are contained in Air Docket A-92-01 
VIIID.
    All the commenters agreed that EPA should revise the leak repair 
requirements. Most of the commenters agreed with the general paradigm 
EPA proposed for repairing leaks in industrial process refrigeration 
equipment. Commenters raised specific concerns regarding various 
aspects of the proposed rule.
    EPA received comments concerning the inclusion of specific types of 
appliances in the definition of industrial process refrigeration 
equipment. One commenter was concerned with whether the economic impact 
of an industrial process shutdown of a nuclear power reactor used in 
the generation of electricity was considered by the Agency.
    Many commenters were concerned with the use and definitions of 
static and dynamic tests. In particular, several commenters suggested 
that the tests should be described as ``first verification test'' and 
``follow-up verification test,'' thus avoiding any confusion stemming 
from the common associations of static and dynamic with a state of 
motion. Some commenters stated that dynamic tests in certain 
circumstances should be performed before the affected appliance is 
operating at steady-state.
    A few commenters were concerned with the methods EPA proposed to 
determine the full charge of an appliance. These commenters believe 
that the fourth option described in the NPRM (60 FR 3996) should be 
considered an acceptable methodology.
    Several commenters believe that EPA should broaden the proposed 
conditions under which mothballing an appliance would suspend the time-
relevant leak repair requirements.
    A few commenters suggested changes to the recordkeeping and 
reporting requirements.
    EPA received several comments regarding the proposed requirements 
for federally-owned chillers. Some commenters supported EPA's proposal, 
some opposed it, and one commenter suggested that EPA re-propose the 
changes under a separate rulemaking.
    EPA received comments on the requirement to exert best efforts to 
repair leaks. Commenters were concerned that since the settlement 
agreement between EPA and CMA was reached, the interpretation of best 
efforts and sound engineering judgment has changed.
    All the comments received by EPA are discussed in greater detail 
below.

V. Response to Comments

    EPA received fourteen sets of comments during the comment period on 
the proposed changes to the leak repair requirements published January 
19, 1995 (60 FR 3992). Individual comments are specifically addressed 
in this section.

A. Legal Authority

    EPA requested comment on the legal authority under which EPA was 
proposing and today is promulgating revisions to the leak repair 
requirements. A few commenters addressed this issue and agreed with 
EPA's legal basis for proposing these changes.

B. Contracted Employees

    Two commenters requested that EPA clarify that actual work to be 
performed on affected appliances may be provided by contracted 
personnel. One commenter stated that although the owner or operator 
remains responsible for compliance, the work need not be performed by 
the owner or operator. EPA agrees with these commenters. The Agency 
recognizes that often repair and maintenance services are performed 
under contractual arrangements. Moreover, contracted personnel will be 
acting as agents of the owner or operator with respect to performance 
of service and maintenance of the appliances. Therefore, the owner or 
operator remains responsible to ensure that compliance with the 
requirements promulgated under section 608 occurs.

C. Nuclear Power

    One comment received by EPA discusses the consideration of the leak 
repair requirements specifically for generation of electricity by a 
nuclear power reactor. The commenter does not believe the NPRM takes 
into account the technological and economic factors specific to the 
operation of these facilities in the context of the statutory standard 
in section 608(a)(3)(A) of the Act. For example, the commenter states 
that the shutdown of a nuclear power reactor within 120 days of 
discovering that the leak rate exceeds 35 percent is costly. The 
commenter stated that planned outages are typically scheduled on an 18-
month cycle.
    EPA understands under this rule, that an industrial process 
shutdown will often occur without regard to the planned outages for 
nuclear power stations, as well as for other industrial process 
refrigeration equipment in order to repair leaks. During the settlement 
agreement negotiations, discussions were held considering the 
possibility of waiting for the next scheduled shutdown. However, since 
these scheduled shutdowns often do not occur frequently, it was 
determined that undertaking a separate industrial process shutdown 
would be necessary to limit the emissions of refrigerant. EPA does not 
believe that the owners or operators of nuclear power stations incur 
costs that are dissimilar to those incurred by the chemical, 
pharmaceutical, petrochemical, and manufacturing industries when an 
industrial process shutdown occurs. Other commenters from these fields 
expressed concerns about the costs associated with an industrial 
process shutdown, but agreed with EPA that such an undertaking would be 
necessary to limit releases of ozone-depleting substances.
    Prior to this rulemaking it was unclear whether the use of chillers 
in the generation of electricity actually met the definition of 
industrial process refrigeration equipment. Therefore, it is true that 
EPA did not base the NPRM on any specific consideration of the nuclear 
power industry. However, EPA does not believe that the commenter has 
demonstrated how the generation of electricity from a nuclear power 
reactor would face technological or economic factors not experienced by 
other owners or operators of industrial process refrigeration 
equipment. Furthermore, today's action lessens the burden for all 
industrial process refrigeration equipment, regardless of its use. If 
significant distinctions exist between refrigeration appliances used in 
the generation of electricity and other refrigeration appliances, EPA 
may need to reconsider whether the use of appliances in the generation 
of electricity is truly consistent with industrial process 
refrigeration equipment. If not, these appliances would be subject to 
the 15 percent leak rate and all associated requirements.

D. Definition of Industrial Process Refrigeration Equipment and the 
Need for Separate Leak Repair Requirements

    The NPRM stated that three main refrigeration sectors are affected 
by the leak repair provisions promulgated under section 608 of the Act: 
commercial refrigeration, comfort-cooling, and industrial process 
refrigeration. While many different commercial refrigeration and 
comfort-cooling appliances are similar in design and function, EPA 
received information from CMA illustrating the uniqueness of industrial 
process refrigeration equipment. Industrial process 

[[Page 40424]]
refrigeration equipment is custom-designed and assembled in-place at a 
process location. Thus, each of these industrial units has unique 
operating characteristics. Industrial process refrigeration has been 
defined in Sec. 82.152 as:

    * * * complex customized appliances used in the chemical, 
pharmaceutical, petrochemical and manufacturing industries. This 
sector also includes industrial ice machines and ice rinks.

    EPA requested comment on the appropriateness of establishing 
separate repair provisions for industrial process refrigeration. EPA 
received several comments concerning the need for separate provisions. 
These comments agreed with the NPRM. Specifically, commenters referred 
to the uniqueness of industrial process refrigeration equipment used in 
pharmaceutical, petrochemical, and manufacturing industries. Commenters 
stated that there are several apparent differences between industrial 
process refrigeration equipment and other types of equipment affected 
by the leak repair provisions. Industrial process refrigeration 
equipment is larger and more complex than hermetically-sealed consumer 
units. Most comfort-cooling appliances have hermetically-sealed or 
semi-hermetically-sealed refrigerant loops. Complexity of the 
industrial process refrigeration equipment makes leak detection and 
leak rate calculations more difficult than for other sectors affected 
by the leak repair provisions. Commenters agreed with EPA's assessment 
that the replacement parts for this sector often must be specifically 
fabricated for the leaking equipment. Commenters believe that shutting 
down industrial process refrigeration equipment often takes several 
days and that the owners and operators of this equipment must avoid any 
unwanted chemical reactions that could lead to fires, explosions, or 
other immediate hazards. Based on the discussion in the NPRM and the 
comments received, EPA is establishing separate leak repair 
requirements for industrial process refrigeration equipment.
    One commenter suggested EPA clarify the definition of industrial 
process refrigeration equipment with respect to the appliance's 
relationship to the manufacturing process. The commenter stated that 
the terms: ``complex;'' ``used in the manufacturing industry;'' 
``custom designed;'' and ``assembled in place'' are subjective and 
could be applied to many of the appliances used for cooling large 
buildings or processes. Industrial process refrigeration equipment in 
the manufacturing sector is used to cool processes directly related to 
a broad range of manufacturing activities. The commenter suggests that 
the differentiating factor between industrial process and commercial 
refrigeration is that industrial process refrigeration equipment tends 
to be directly linked to a manufacturing activity. EPA agrees with this 
commenter's concerns. EPA distinguishes between commercial 
refrigeration and industrial process refrigeration equipment for the 
purposes of Sec. 608 in part by considering how the appliance is used. 
EPA did not intend to include in the definition of industrial process 
refrigeration equipment appliances not involved in the industrial 
process. Therefore, through this action EPA will amend the definition 
of industrial process refrigeration to clarify that use is a factor in 
determining if an appliance is industrial process refrigeration 
equipment.
    EPA received comments concerning whether the generation of 
electricity, particularly where a nuclear reactor is used, is included 
in the definition of industrial process refrigeration equipment. One 
commenter stated that EPA does not specifically identify electric 
generating stations as industrial processes, as the rule does for the 
chemical and pharmaceutical industries. The commenter states that 
large, custom refrigeration appliances to cool the production process 
are essential to the manufacturing of electricity and are prevalent at 
nuclear generating stations.
    Fundamental to the classification of these appliances is whether or 
not the system is used directly in the production of electricity. The 
commenter states that shutting down the refrigeration appliances could 
result in the shutdown of the generating station, where the two are 
integrally linked. Another commenter stated that chillers used in 
safety-related equipment are critical to the safe shutdown of nuclear 
power stations in the event of an accident. EPA believes that current 
definition of industrial process refrigeration equipment needs to be 
clarified to specifically state that the generation of electricity is 
included. EPA believes that under the current definition it is not 
apparent that the generation of electricity is considered 
manufacturing. Therefore, through this action, EPA will add the 
generation of electricity to the definition of industrial process 
refrigeration. EPA would like to clarify that the definition will only 
include appliances directly linked to the generation of electricity. 
Appliances used to cool control rooms or offices are not considered 
industrial process refrigeration equipment.
    The amended definition will be:

    * * * complex customized appliances used in the chemical, 
pharmaceutical, petrochemical and manufacturing industries. These 
appliances are directly linked to the process. This sector also 
includes industrial ice machines, appliances used directly in the 
generation of electricity, and ice rinks * * *

    EPA received one comment concerned with the potential for 
ambiguities in the definition of industrial process refrigeration 
equipment and commercial refrigeration. The commenter notes that by 
default, all appliances with more than 50 pounds of refrigerant that do 
not come under the definition of commercial or industrial process 
refrigeration equipment must have leaks repaired when the leak rate 
exceeds 15 percent leak rate. EPA agrees that all appliances with 50 
pounds of refrigerant or more, that do not meet these definitions are 
subject to the 15 percent leak rate.
    Three comments asserted that other types of appliances should also 
be included in the leak repair requirements for industrial process 
refrigeration equipment. These commenters proposed expanding the 
definition of industrial process refrigeration equipment to incorporate 
specialized comfort cooling appliances and specialized commercial 
refrigeration. One commenter stated that since industrial comfort-
cooling equipment such as the air conditioners mounted on cranes in a 
smelter are ``custom built,'' EPA should allow additional time for 
repairs to be made. While EPA understands that these appliances are 
customized to be located on cranes, often above molten metal, EPA does 
not believe these appliances are consistent with either the original or 
amended definition of industrial process refrigeration equipment. EPA 
believes that the parts used in these types of comfort-cooling 
appliances are not unique and are therefore relatively easy to replace. 
Furthermore, the appliances do not function as part of the process. 
Customizing the appliances in this scenario refers predominantly to 
modifying the system to fit in its intended location. Therefore, EPA 
does not consider industrial comfort-cooling appliances to be 
industrial process refrigeration equipment.
    Another commenter stated that the definition of industrial process 
refrigeration should be expanded. The commenter uses specialized 
refrigeration equipment in confined spaces and other industrial-setting 
applications, refrigeration as cooling equipment in laboratories for 
meeting 

[[Page 40425]]
specific testing requirements, and cooling areas containing a bank of 
computers to ensure a controlled environment. Another commenter stated 
that the definition should specify that appliances used for regulating 
temperatures in the control panel buildings should also be considered 
industrial process. The commenter believes that this is an integral 
part of the process and that since these appliances are vital to the 
proper functioning of the instruments in the control panel they do not 
constitute ``comfort-cooling.'' While EPA understands that these 
cooling appliances are designed to meet specific cooling needs and fit 
in specific settings, these appliances do not meet the definition of 
industrial process refrigeration. EPA does not believe it is 
appropriate to expand the definition of industrial process 
refrigeration equipment to include specialized comfort-cooling 
appliances. If appropriate in the future, EPA could consider creating a 
separate category of specialized comfort-cooling appliances and/or 
specialized commercial appliances and permitting additional time to 
repair leaks. However, at this time EPA does not believe this is 
necessary. If EPA receives compelling information, then EPA would 
consider proceeding with appropriate notice and comment.
    Amending the requirements to create new sub-sectors for appliances 
not considered in the NPRM, particularly where such determinations 
would likely have wide-ranging consequences where proper notice has not 
been given, would be inappropriate as part of today's final action. 
Therefore, EPA will not expand the definition of industrial process 
refrigeration equipment to include specialized comfort-cooling or 
specialized commercial appliances. EPA may reconsider this issue 
through proper notice and comment procedures, at a later date.
    EPA received several comments regarding the amount of refrigerant 
contained in appliances subject to the leak repair requirements. 
Commenters asked that EPA clarify that leak repair is required only for 
appliances that normally contain more than 50 pounds of refrigerant. On 
August 19, 1994 (59 FR 42953), EPA addressed this concern. The notice 
states that ``although EPA did not explicitly restrict the scope of its 
leak repair requirement for commercial and industrial process 
refrigeration to equipment containing more than 50 pounds of 
refrigerant, EPA intended this requirement (Sec. 82.156(i)) to cover 
only equipment containing at least 50 pounds'' (59 FR 42953). 
Accordingly, EPA amended Sec. 82.156(i) to specify the 50-pound cut-off 
(59 FR 42957). Inadvertently, EPA neglected to carry over that amended 
language in the January 19, 1995 NPRM. Therefore, through this action, 
EPA will amend the proposed requirements of Sec. 82.156(i) to specify 
the 50-pound cut-off.
    One commenter requests that EPA clarify that 50 pounds refers to 
the refrigerant in one refrigerant circuit. The commenter states that 
where two separate, wholly independent refrigeration circuits that are 
not interconnected, each having a normal refrigerant capacity of no 
more than 50 pounds, the leak repair provisions should not apply. EPA 
agrees with this commenter. Through this action, EPA would like to 
clarify that if the refrigerant circuits do not interconnect, and if 
each wholly independent circuit has a capacity of no more than 50 
pounds of refrigerant, the leak repair provisions promulgated under 
Sec. 82.156(i) do not apply. However, if the refrigerant circuits are 
connected, and the combined circuits have a normal capacity of more 
than 50 pounds of refrigerant, the leak repair provisions do apply.
    EPA received several comments regarding appliances used as both 
industrial process refrigeration equipment and comfort-cooling. The 
commenters were concerned with whether they need to use the 15 percent 
leak rate or the 35 percent leak rate under these circumstances. One 
example would be a chiller used directly in the generation of 
electricity and used to cool the control room. EPA believes that where 
50 percent or more of an appliance's capacity is being used as 
industrial process refrigeration equipment, that appliance should be 
treated as industrial process refrigeration equipment and therefore 
subject to the 35 leak rate. Where less than 50 percent of an 
appliance's capacity is being used as industrial process refrigeration 
equipment, then the appliance will not be considered industrial process 
refrigeration equipment and will therefore be subject to the 15 percent 
leak rate. EPA believes this demonstrates an equitable approach and is 
consistent with determinations made by the Agency's Office of 
Compliance.1

    \1\ Applicability Determination #51 made under the Sec. 608 
rulemakings.
---------------------------------------------------------------------------

    EPA received one comment regarding the definition of on-site. The 
commenter believes EPA should specify that on-site means within a 
contiguous geographic area, under common ownership or control, that 
includes the location of the appliance. For the purposes of these 
regulations, EPA agrees with this interpretation of the term on-site.

E. Repairing Appliances

1. Repair Attempts
    EPA received several comments seeking clarification concerning how 
EPA will interpret the first repair attempt. Commenters stated that EPA 
should clarify that repairs can be iterative and therefore an owner or 
operator should be allowed to make as many repair attempts within the 
initial 30-day or 120-day timeframe as possible, as long as the results 
of conducting the verification tests indicate that the repairs were 
successful. One commenter explained that repairs may be checked several 
times before being considered complete. The commenter feared that there 
may be confusion that one unsuccessful attempt to tighten a bolt or 
replace a gasket might trigger the requirements as when a dynamic test 
fails.
    EPA agrees with these concerns. EPA believes that during the 
initial 30-day or 120-day repair time, all attempts should be made to 
repair the leaks. Therefore, through this action EPA will replace the 
proposed language ``first attempt'' with ``initial repair efforts,'' 
thus including all the efforts made during the initial 30 or 120 days.
    EPA also received comments concerning the interpretation of 
``second attempt'' to repair leaks. The commenters are concerned that 
second attempt implies a singular event rather than a series of events 
to repair a leak within a finite period of time. One commenter 
suggested that ``efforts'' be used instead. The commenter believes a 
limited timeframe instead of a limited event should be acceptable. EPA 
received comments indicating that the Agency should modify the rule to 
include a timeframe for completing the second attempt to repair leaks, 
particularly since a timeframe was included in the settlement 
agreement.
    EPA agrees with the comments. A timeframe of 30 days (or 120 days 
in the case of an industrial process shutdown) was specified in the 
settlement agreement and inadvertently not included in the NPRM under 
Sec. 82.156(i)(3)(iv). As discussed above in reference to a first 
repair attempt, EPA understands that repairs may be iterative and that 
a singular effort should not be described. Another comment suggested 
EPA use the language, ``any subsequent repair attempt.'' EPA does not 
believe that this language is appropriate because it is too open-ended 
and could potentially cause 

[[Page 40426]]
confusion. Therefore, through this action EPA will modify the proposed 
Sec. 82.156(i)(3)(iv) to include a reference to 30 days and 120 days 
for completing ``second repair efforts.''
2. Timeframes for Repairing Leaks
    EPA received many comments supporting the proposed timeframes for 
repairing leaks in industrial process equipment. These commenters 
recognized that while many types of leaks can be repaired within 30 
days, in particular circumstances, such as when an industrial process 
shutdown is required, additional time is necessary. EPA received one 
comment stating that in all cases 120 days should be provided to repair 
all leaks. The commenter further stated that if the leaks could not be 
repaired within 120 days, additional time should be provided if the 
parts are unavailable, there are complications due to other 
regulations, or the potential need for the system to be taken off line 
to effect the repair exists. The commenter believes that this will 
reduce the amount of delays experienced by waiting for approvals from 
the Agency and it would decrease the burden placed upon the industry by 
reducing the number of submittals. The commenter further believes that 
by reducing wasted time spent in performing bureaucratic functions, and 
waiting for approvals, the repairs may be more quickly and efficiently 
made.
    EPA does not believe it is necessary to always permit 120 days to 
repair leaks. In negotiating the settlement agreement with CMA and in 
subsequent discussions with industry representatives, numerous examples 
of routine repairs that can easily be made within 30 days have been 
identified. These types of repairs include leaks caused by a ruptured 
tube and a leaking gasket between the flanges. These and other types of 
repairs normally completed in less than 30 days are discussed in the 
NPRM (60 FR 3994). Limiting repair times to the most reasonable amount 
of time ensures that the repairs are completed responsibly and 
consistent with the spirit and intent of section 608 and the initial 
regulations promulgated in May 1993. EPA sees no reason to provide 
additional time to repair leaks that many commenters agree can easily 
be repaired within 30 days. Part of EPA's rationale for proposing 
changes to the leak repair provisions is based on the need to provide 
flexibility where the leaks are such that repairs cannot be made within 
30 days. Allowing 120 days for repairs where an industrial process 
shutdown is necessary recognizes the need to first complete the actual 
shutdown before attempting to fix the leaks. Since under most 
circumstances, owners or operators are expected to proceed with their 
repair or retrofit operations without receipt of prior approval, EPA 
does not believe waiting for approval constitutes a reason for the 
owners or operators to delay action. Thus extending the leak repair 
timeframe to 120 days to ensure adequate time to receive EPA approval 
is not necessary. Therefore, EPA is requiring that where appropriate, 
leaks are to be repaired within 30 days.
    EPA received one comment regarding the course of action when the 
30-day repair requirement cannot be met. The commenter notes that the 
NPRM's preamble states that when the 30-day repair requirement cannot 
be met, the owner or operator must notify EPA and include ``a one-year 
retrofit, replacement or retirement plan for the leaky equipment'' (60 
FR 3994). However, the regulatory language does not state that 
requirement. Instead, the regulatory language states that the owners or 
operators must provide the reason(s) why more than 30 days are needed 
and an estimate of when the repair work will be completed. The 
commenter believes the regulatory text is correct. EPA agrees that the 
regulatory language properly reflects the notification requirement. 
Provisions proposed under Sec. 82.156(i) allows for other alternatives 
besides automatically retrofitting or replacing the equipment.
3. Determining the Full Charge of Refrigerant
    EPA received several comments concerning establishment of the 
amount of refrigerant contained in industrial process refrigeration 
equipment and therefore determining the leak rate for the affected 
appliance. One commenter suggested that EPA should specify a 
methodology for determining the percentage of refrigerant lost during a 
12-month period. Another commenter stated that large facilities that 
have in-house staff for servicing refrigeration equipment may not have 
had any regulatory requirement or internal justification for 
maintaining records of refrigerant charges prior to June 14, 1993 (the 
effective date of the initial regulations promulgated under section 
608). The commenter requests that EPA clarify that leak rate 
calculations are required to be performed by taking into consideration 
the additions of refrigerant that occur after the original promulgation 
of section 608. Furthermore, the commenter requests clarification about 
prorating refrigerant added over more than a 12-month period. For 
example, if 20% is added every 24 months, does that constitute a 10% 
per year leak rate? The commenter believes that since there were no 
regulatory requirements prior to May 1993, owners or operators should 
not be subject to enforcement based on imprecise calculations. 
Alternatively, the commenter believes that EPA should permit the first 
recharge to occur without regard to the leak rate in order to establish 
a full charge baseline.
    EPA understands that prior to June 1993, records regarding the 
addition of refrigerant may not have been maintained. However, at this 
point such information should have been maintained for over two years. 
Therefore, EPA believes it is reasonable to assume a baseline can be 
established. EPA agrees that refrigerant recharges should be 
appropriately prorated to establish a yearly leak rate; however, EPA 
does not believe it is necessary or appropriate to permit the first 
recharge to occur without making an effort to assess the leak rate.
    Several commenters requested that EPA permit the use of the fourth 
option discussed in the NPRM (60 FR 3996) for determining the full 
charge of refrigerant. This method allows one to choose a number from 
within an established range based on the best data currently available. 
Once a number is selected, it would be considered the full charge; 
however, over time the owner or operator of the appliance may adjust 
the number based on new or revised information concerning the 
performance of the system. EPA expressed concerns that there is no 
clarity regarding circumstances under which a change in the number 
could be justified. In the NPRM, EPA stated that an everchanging 
estimate of the full charge defeats the purpose of creating a baseline.
    Several commenters stated that EPA's concerns can be overcome. One 
commenter stated that in its experience it is difficult to accurately 
estimate the full charge of particular appliances. The commenter 
believes that often only trial and error will derive an accurate 
number. The commenter believes it is essential to allow an owner or 
operator to be able to draw from experience and use a range in 
estimating the full charge. The commenter believes that as long as the 
method used is documented, an inspector can determine if the approach 
was reasonable. Another commenter stated that EPA should not reject any 
legitimate technique for calculating the full charge. Several 
commenters stated that every method for determining the full charge has 
its strengths and weaknesses. Moreover, expressed or not, all methods 
will develop a range. The commenters believed that EPA's 

[[Page 40427]]
concerns are that the owners or operators might frequently change the 
determination of full charge and that EPA would lack the criteria to 
evaluate whether the changes were justified. The commenters suggested a 
way to address these concerns:
     Any downward revision of the full charge should be 
acceptable without a need for EPA to challenge it;
     EPA could specify that the midpoint of the established 
range constitutes the full charge for determining a leak rate;
     EPA could require the owners or operators to maintain 
records of the basis for their original determinations of the full 
charges and any data behind any changes to those determinations; and
     EPA could require the owners or operators to submit a 
report to EPA when a number is revised after discovering refrigerant 
losses, when a number is revised resulting in a leak rate below 35 
percent, and when the owners or operators do not intend to fix the 
leaks.
    Another commenter stated that if EPA does not revise the proposed 
regulations to permit this method for determining the full charge, the 
Agency should provide at least six months for the owners or operators 
to determine the full charge of affected appliances using acceptable 
methods.
    EPA has considered these comments very carefully. EPA's concerns 
relate to the accuracy of the fourth method for determining the full 
charge of a system and the potential to adjust the estimate to reduce 
leak rates below the applicable thresholds. However, EPA believes that 
the commenters have suggested ways to alleviate EPA's concerns. EPA 
understands that while ranges may need to be adjusted several times for 
a new appliance, over time the frequency of such adjustments would 
likely decrease, unless substantial modifications were made to the 
appliance. Moreover, in most cases, ranges would not need to be 
adjusted more than once every few years after an appliance has been in 
operation long enough for the owner or operator to become comfortable 
with the range. Furthermore, EPA understands that a range may actually 
represent seasonal variations.
    EPA agrees with the commenters that any downward revision of the 
full charge should be acceptable without any need for EPA to challenge 
the revision. EPA further agrees that the midpoint of the established 
range shall represent the full charge for determining a leak rate. This 
mitigates the possibility of receiving any unfair advantage by 
adjusting the range, since the midpoint would not vary as much.
    EPA agrees with the comments that records should be maintained 
concerning the determination of the range and any adjustments to it. If 
the owners or operators of an appliance choose to establish a range, it 
is critical to understand the methodology for the establishment of the 
range and the methodology for any adjustments that would result in a 
larger number for the midpoint. EPA believes that such records would be 
beneficial in any compliance determinations. Moreover, EPA believes 
that while ranges many need to be adjusted several times during the 
first year, the ranges will soon become stabilized. It will not be 
necessary to adjust the ranges unless a major change was made to the 
industrial process refrigeration equipment. Therefore, the records 
would not need to be modified often. Commenters suggested data elements 
to be contained in the records, including the original full charge and 
any revisions. EPA agrees with these commenters. Therefore, the records 
required for using the fourth option will include: the identification 
of the owner or operator of the appliance; the location of the 
appliance; the original full charge of the appliance and how it was 
determined; any revision of the full charge number and how it was 
determined; and the date such revisions occurred. Since the owner or 
operator need not use the fourth methodology, EPA does not believe this 
recordkeeping provision constitutes an unreasonable burden for the 
owners or operators.
    While commenters suggested limited reporting requirements to 
accompany this recordkeeping provision, EPA does not believe it is 
necessary or appropriate to require reports to be submitted detailing 
the methodology for establishing or changing the full charge 
determination. EPA believes maintaining records is necessary for the 
Agency to understand the methodologies used if an issue of compliance 
arises. EPA also believes that in all likelihood, such records will 
benefit the owner or operator of the appliance by providing a historic 
record of how the current leak rate was developed. However, routinely 
providing that information to EPA, particularly where no potential 
violation is suspected, is not necessary or appropriate. Therefore, EPA 
will require that records be maintained if the fourth method for 
establishing the full charge is used; however, EPA will not require any 
periodic reporting.
    Commenters stated that if the Agency adopts any recordkeeping or 
reporting options for the fourth methodology, such provisions should 
not be extended for use with the other three methodologies. EPA agrees 
with these commenters. EPA did not propose and today is not adopting 
any recordkeeping options for these three methodologies.
    Through this action EPA will allow any one of the three proposed 
methods and the fourth method discussed in the NPRM, or a combination 
of these methods to be used for determining the full charge of 
appliances. If the fourth method is chosen or used in combination with 
any of the other acceptable methods, the midpoint of the range will 
constitute the full charge for purposes of determining the leak rate. 
The owners and operators of the affected industrial process 
refrigeration equipment must keep records in accordance with 
Sec. 82.166(q), detailing the methodology used for determining and 
adjusting the range.
    Two commenters stated that the calculations required for 
determining the normal charge of industrial process refrigeration 
equipment should apply to the commercial and comfort-cooling sectors as 
well. One commenter believes that these other appliances have field-
installed interconnecting piping and there may not be any information 
available from the manufacturer indicating the normal refrigerant 
charge. Furthermore, the commenter requests that EPA publish guidance, 
including formulas, tables and sample calculations with enough detail 
that most owners affected by the leak repair provisions will be able to 
perform the necessary calculations. EPA does not agree with this 
commenter. In cases where a comfort-cooling or commercial refrigeration 
appliance is ``customized,'' EPA believes it is still relatively easy 
to derive the charge of the system. Field-installed piping can be 
measured and the refrigerant charge can, therefore, be calculated. 
Moreover, the owners or operators of such systems often hire 
contractors to service and maintain their appliances. These contractors 
should be able either to determine the full charge or to provide 
guidance on establishing leak rates. EPA believes that in most 
instances, these contractors will be better able to advise the owners 
or operators. Therefore, EPA does not believe it is necessary to 
specify how the full charge will be established for these sectors, nor 
to publish specific guidance.
    One commenter believes that EPA should exclude from any calculation 
of refrigerant leak rates the loss of refrigerant through a one-time 
accidental release, such as breaking pipes, a ruptured disc, or 
operator error. 

[[Page 40428]]
EPA disagrees with this commenter. While EPA understands that accidents 
do occur, EPA believes that if the events are such that the leak rate 
surpasses the 15 percent or 35 percent thresholds, the necessary 
repairs should be made to ensure that the owners or operators of the 
appliances are in compliance. Such repairs would include replacement of 
the broken pipe or rupture disk that led to the accidental release. 
Such repairs would also include correcting any condition that 
repeatedly led to an accidental release (e.g. over pressurization). 
Moreover, since many leaks occur because of one-time events, such as 
ruptured pipe, it would be impossible to draw clear distinctions of 
what would be included in leak repair calculations.
    One commenter stated that EPA should clarify that the owners or 
operators may hire contractors to determine the full charge. The 
commenter further believes that throughout the rule EPA should 
recognize the role of contractors who service refrigeration appliances. 
As stated earlier in this preamble, EPA recognizes that the owners or 
operators may have contractual arrangements with contractors or 
technicians who actually perform maintenance and repair work on the 
appliances subject to the leak repair provisions. While the work may be 
performed under such arrangements, the personnel are in effect acting 
as an agent of the owners or operators.
    One commenter stated that EPA should clarify how to determine the 
full charge for appliances with multiple independent compressors and 
refrigerant loops. As EPA has stated elsewhere in this notice, the 
charge of an appliance is based on the charge of an individual 
refrigerant loop/circuit where that loop/circuit is not interconnected 
and that contains a normal charge of 50 pounds of refrigerant or more. 
EPA distinguishes between those that are independent and those that are 
interconnected, perhaps employing multiple compressors (e.g. parallel 
systems).
4. Best Efforts
    EPA received several comments concerning the term ``best efforts,'' 
as used in Sec. 82.156(i)(2). Several commenters agreed with the 
Agency's interpretations. These commenters stated that it was 
appropriate to exclude formal protocols from the interpretation of best 
efforts because of wide variations in the regulated community. One 
commenter stated that each leak is unique and best efforts to repair a 
small leak will differ from those taken to repair larger leaks. A 
formal definition would either be too complex or ineffective at 
capturing all the scenarios.
    One commenter requested that EPA include a formal definition of 
best efforts in the final rule. The commenter stated that the lack of a 
formal definition could create uncertainty as to what the rule 
requires. The commenter recognized that the description of best efforts 
discussed in the NPRM originated with industry. The commenter provided 
two possible ways to better characterize a best efforts approach. The 
approach includes providing more description in Sec. 82.156(i)(2) and/
or creating a specific definition in Sec. 82.152. The commenter 
suggested the following definitions:

    best efforts means a repair method is used that is reasonably 
expected to be effective on the particular type of leak, based on 
past experience;

    or

    best efforts means that, during an extension of the 30-day 
period for repairs, the owner or operator repairs significant leaks 
to the extent practical during the 30 days, by using a repair method 
that is reasonably expected to be effective based on past 
experience, on those leaks that do not require an extension of time.

    While EPA understands the benefits of having a formal definition 
for any term used in regulations, EPA does not believe these 
definitions solve the problem discussed in the NPRM. In the NPRM, EPA 
states that its concerns are the lack of formal protocols in the best 
efforts approach described by EPA. EPA characterizes a best efforts 
approach in the NPRM as implying that a methodology for repair that is 
reasonably expected to be effective based on past experience and 
potentially may include consultation (60 FR 3994). EPA does not believe 
the commenter's suggested language incorporates all of the concepts 
described in the NPRM. Adopting an inadequate definition does not 
benefit EPA or the regulated community. EPA requested comments on a 
definition hoping that perhaps an industry standard could be cited. 
Throughout the regulations promulgated under section 608, EPA refers to 
industry standards. Without the existence of such standards, EPA 
believes that a formal definition is not the best approach.
    Several commenters stated that EPA should modify the proposed 
regulatory language in Sec. 82.156 (i)(2) and (i)(2)(ii) to distinguish 
best efforts from sound engineering/professional judgment. The 
commenters are concerned that EPA erroneously included sound 
engineering/professional judgment in the definition of best efforts. 
The commenters stated that the intention behind best efforts was that 
the owners or operators should do what is necessary within reason to 
repair leaks within 30 days in situations where longer extensions 
beyond 30 days are necessary to conduct repairs due to the 
unavailability of spare parts or compliance with other federal, state, 
or local regulations. In further discussions with the commenters, it 
appears that over time any initial distinction that EPA and CMA made in 
the settlement agreement between best efforts and sound engineering/
professional judgment has become convoluted. EPA believes that the 
rationale for using the term best efforts for repairing leaks that 
required an extension beyond the initial 30 days was to ensure that 
where there are multiple leaks or where a leak can be partially 
repaired, the owners or operators will complete all reasonable actions 
during the initial 30 days. The result will be to reduce the leak rate 
as much as possible during the initial 30 days where additional time is 
necessary to complete all repair activities. Additional comments 
submitted by CMA confirm this interpretation. Therefore, EPA is 
amending Sec. 82.156(i)(2) to remove the references to best efforts. 
Instead, EPA will state that the owners or operators must conduct all 
necessary leak repairs that do not require additional time beyond the 
initial 30 or 120 days. EPA believes that this change in language more 
adequately conveys the intent of this provision, which is to allow 
additional time, while ensuring that all that can be done has been 
done.
5. Static and Dynamic Tests
    EPA received many comments supporting the use of static and dynamic 
tests. While these commenters agreed with the need for these tests, 
several suggestions for when the tests should be used and alternative 
terminologies were suggested. These comments will be discussed in 
greater detail later in this subsection. EPA received one comment 
opposing the use of static and dynamic tests. The commenter stated that 
static and dynamic tests are not precisely reliable methods on which to 
base a requirement to retrofit a piece of equipment. The commenter 
stated that it had documented cases where the results of such tests 
have been inconclusive. The commenter further believes that the tests 
are overly burdensome and unnecessary. The commenter believes that the 
tax and cost of refrigerants should provide the necessary incentives.

[[Page 40429]]

    EPA agrees that the expense of ozone-depleting refrigerants will 
influence the decisions made by many organizations. However, 
considering the size of the refrigerant charges for some of the 
appliances subject to the leak repair provisions, ensuring that 
appliances brought back on-line are no longer leaking above the 
threshold, is important. Also, often appliances may use an HCFC, which 
is not subject to federal tax. In the settlement agreement, EPA and CMA 
agreed to propose this verification approach. Since these tests are 
regularly performed to ensure that a leak has been repaired, EPA 
believes these requirements are not overly burdensome. Furthermore, EPA 
believes that performing such tests provides the owners or operators 
with a strong measure of insurance. Moreover, since EPA has proposed 
options other than retrofitting or retiring the leaky equipment, such 
as reducing other leak sources, EPA does not believe a retrofit or 
replacement decision would be based solely on one failed static or 
dynamic test. Therefore, EPA will require that the tests be performed.
    EPA received several comments regarding the use of the terms 
``static'' and ``dynamic.'' Commenters stated that uses of the terms 
``first verification test'' or ``initial verification test'' and 
``follow-up verification test'' would be more appropriate. Among the 
reasons suggested for this change is a concern that the terms static 
and dynamic have commonly understood meanings. Static generally means a 
system is at rest and dynamic generally means a system is operating. 
One commenter stated that during the settlement discussions the terms 
were crafted to discuss repairs, using the widely understood meaning. 
However, later it was realized that industrial process refrigeration 
equipment that was not shut down during repairs was neglected. The 
terms were then broadened to mean a first verification and a second 
verification test. After discussions with employees, the commenter now 
believes that the broadened definitions would likely cause confusion. 
Another commenter agreed that while the broadened definition captures 
the situations faced by the owners or operators, the language would be 
confusing. Several commenters suggested that the terms ``first'' or 
``initial verification test'' and ``follow-up verification test'' would 
be more accurate.
    EPA agrees with these commenters. The definitions of static and 
dynamic were broadened to capture real world situations. Since the 
settlement agreement bound the Agency to a proposal that included those 
terms, EPA did not consider the use of other language to describe the 
tests. However, EPA agrees that ``initial verification test'' and 
``follow-up verification test'' more accurately describe the tests, 
particularly since often the same types of tests qualify as both static 
and dynamic, depending on when they are performed. EPA believes 
changing the language would further clarify that the state of motion is 
not necessarily a criterion. Therefore, through this action, EPA will 
replace the proposed terms ``static'' and ``dynamic'' with the terms 
``initial verification test'' and ``follow-up verification.''
    Commenters suggested that EPA streamline the definition of initial 
verification test (static verification test) by removing illogical or 
redundant statements. The commenters state that there is no need to say 
that the test will be performed before the appliance or portion of the 
appliance has reached operation at normal working conditions of 
temperature and pressure because it would not be possible for an 
appliance or portion of an appliance to do so without a full 
refrigerant charge. EPA understands the commenters' concerns. Clearly, 
without a full charge of refrigerant, normal working conditions of 
temperature and pressure cannot be reached. However, to limit the 
potential for misinterpretations, EPA would rather be overly explicit.
    One commenter requested that EPA distinguish between the terms 
steady-state operating conditions, steady-state operating 
characteristics, normal working conditions and normal operating 
conditions. The commenter stated that in engineering terms, these terms 
are not always equivalent. For example, if the values of all the 
variables in a process (e.g. all temperatures, pressures, volumes, flow 
rates, etc.) do not change with time, except for possibly minor 
fluctuations, the process is said to be operating at steady state. 
However, if any of the process variables change with time, transient or 
unsteady-state operating is said to exist. Depending upon the 
industrial process that the industrial process refrigeration equipment 
is supporting, its normal operation in strict engineering terms may be 
characterized as steady-state or unsteady-state. The commenter 
therefore believes it is more appropriate when referencing the 
operation state of the refrigeration equipment, for purposes of 
indicating when either verification test should be conducted, for the 
Agency to adopt the terminology ``normal operating characteristics and 
conditions.'' Furthermore, the commenter believes that normal operating 
characteristics and conditions has an understood definition equivalent 
to how the NPRM defines and refers to steady-state operations.
    While EPA received other comments supporting the use of the term 
steady-state, EPA agrees with the concerns regarding the potential for 
confusion. The use of the term steady-state in this context originated 
with the settlement agreement. While the proposed definition for 
steady-state appears acceptable to most of the affected industry, EPA 
is concerned that someone familiar with the engineering distinctions 
between steady-state and unsteady-state would be confused. Therefore, 
EPA believes it is appropriate to replace ``steady-state'' with 
``normal operating characteristics and conditions.'' EPA will not be 
revising the definition in any substantive manner; therefore, the 
definition itself will be consistent with the spirit of the settlement 
agreement.
    Several commenters raised concerns on when a follow-up verification 
test is performed. The commenters are concerned that the NPRM does not 
properly consider occasions where a verification test at normal 
operating characteristics and conditions is impractical or less 
meaningful. Commenters stated that there are repair situations where 
the repair sites will not be accessible to perform a meaningful 
verification test after the industrial process refrigeration equipment 
is returned to normal operating characteristics and conditions. One 
example would be a verification test for leaks inside a heat exchanger. 
The tests can be performed while the exchanger is open. A test 
performed after the exchanger is reassembled would not be as 
meaningful. Other examples provided by the commenters include: 
compressor internals, locations that must be re-insulated prior to 
start-up, and locations in close proximity to dangerous hot equipment 
or moving parts where access is not possible after reassembly. EPA did 
discuss whether it would be appropriate to permit follow-up 
verification tests prior to returning to normal operating 
characteristics and conditions; however, EPA did not propose to allow 
these alternative tests. Commenters stated that since there are 
situations where the tests prior to a return to normal operating 
characteristics and conditions will be more meaningful and reliable, 
EPA should permit sound engineering/professional judgment to be used to 
determine what the appropriate operational state of industrial process 
refrigeration equipment should be when the follow-up verification tests 
are 

[[Page 40430]]
conducted. One commenter stated that EPA should take confidence in the 
fact that leak detection and repair of appliances did not originate 
with section 608; it has been an integral part of maintenance practice 
for many years.
    EPA agrees that in certain circumstances, performing a follow-up 
verification test prior to normal operating characteristics and 
conditions may be more meaningful and reliable. Performing multiple 
verification tests may be appropriate under many conditions. One of the 
Agency's concerns, however, was that until normal operating 
characteristics and conditions are achieved, it may be unclear if the 
leak repair work was truly successful. EPA was concerned that at less 
than true operational state, a particular fix may not hold. The Agency 
understands that leak detection and repair has been part of this 
sector's practices before the development of these regulations. 
Furthermore, EPA believes that as class I and class II refrigerants 
become less readily available, leak detection and repair efforts may 
increase. Moreover, EPA believes that in most cases the owners or 
operators rely on personnel with appropriate professional judgment in 
determining the best way to repair and verify the repair of a leak 
source. Therefore, through this action EPA will amend the proposed 
requirements for performing follow-up verification tests. EPA will 
require that the test be performed at normal operating characteristics 
and conditions unless sound professional judgment determines that a 
follow-up test should be performed prior to returning to normal 
operating characteristics and conditions.
    EPA received several comments requesting that the Agency clarify 
that initial and follow-up verification tests are to be performed even 
when repairs are made within 30 days. One commenter stated that the 
NPRM was unclear. The commenter believes that as a practical matter, 
and to minimize confusing plant operations, it would be preferable to 
treat all repairs equally, and to require documentation that tests 
should be done to verify a successful repair. Another commenter stated 
that these tests are a measure of compliance. Another commenter stated 
that the settlement agreement makes no mention that these requirements 
must be met only in cases where the owners or operators are granted 
additional time. Furthermore, the settlement agreement does not limit 
these tests to situations where an industrial process shutdown has 
occurred, or where the repairs were made while an appliance was 
mothballed. This commenter believes that, with regards, to the 
performance of these tests, the regulatory language should be in full 
agreement with the settlement agreement.
    EPA agrees that the tests demonstrate whether a leak repair effort 
was successful or not, though the tests do not necessarily mean that 
the leak rate has been sufficiently reduced. In addition, EPA 
understands that often these tests have been routinely performed 
regardless of any regulatory requirement. EPA believes that many 
organizations have internal policies requiring that verification tests 
be performed. EPA agrees that having a consistent requirement that can 
easily be paraphrased for technicians is useful. Moreover, EPA does not 
believe requiring these tests in all circumstances equates to any 
substantial burden to industry. Therefore, EPA will require that 
initial and follow-up verification tests be performed when repairing 
leaks on industrial process refrigeration equipment where such leakage 
has surpassed the 35 percent annual leak rate.
    One commenter requested that EPA clarify that the verification 
tests demonstrate the success of a leak repair, not that the leak rate 
has been reduced below the threshold. EPA agrees with this commenter. 
It was not EPA's intention to imply that the verification test shows 
what the leak rate is. However, EPA believes that where the 
verification test shows that the repairs have been successful, in most 
cases this will mean that there has been a reduction in the leak rate. 
If more than one leak exists, it is possible that the leak rate could 
remain above acceptable levels. In such cases the owners or operators 
would be expected to take reasonable actions.
    Two commenters stated that where an industrial process shutdown is 
not required, the initial and follow-up verification tests will be 
identical; therefore, a follow-up verification test is unnecessary. EPA 
disagrees with these commenters. While the same test might be 
performed, the fact that the tests are performed at different times is 
important. If a repair consists of tightening flange bolts, for 
example, it may appear that a repair is successful during an initial 
verification test. However, it may not be immediately obvious that the 
repair was unsuccessful. A bolt may appear to have been tightened 
sufficiently; however, if the threading is damaged, it may loosen in a 
short period of time. Performing a follow-up verification test will 
demonstrate that a problem still exists. EPA believes that even when an 
industrial process shutdown is not necessary, initial and follow-up 
verification tests will play vital roles. Therefore, EPA is requiring 
that both initial and follow-up verification tests be performed when 
repairs are made even if an industrial process shutdown is not 
required.
    EPA received one comment requesting that more than one follow-up 
verification test be permitted before an owner or operator must notify 
EPA of a failure. The commenter is concerned that situations could 
arise in which a follow-up verification test may indicate a failure 
even though in reality the leak has been fixed. The commenter suggested 
that it would be more reliable in the event that the test was 
inconsistent with the expected results, that subsequent tests be 
permitted to be performed during the 30-day period. EPA understands 
this commenter's concerns. Since repairs are often interrelated, tests 
may demonstrate a need to continue repair efforts. EPA proposed to 
permit the follow-up verification test to occur within 30 days. 
However, since the Agency is revising the terminology used in the NPRM 
to first repair efforts and second repair efforts, EPA believes the 
issue has been resolved. Tests will be completed after the repair 
efforts are complete.
    EPA received comments concerning the interpretation and use of 
sound engineering/professional judgment. Commenters stated that EPA 
should not incorporate sound engineering/professional judgment into the 
interpretation of best efforts. Sound engineering/professional judgment 
should only be discussed in relation to verification tests. EPA has 
already addressed the commenters' concerns about the NPRM's 
incorporation of sound engineering/professional judgment with the use 
of best efforts.
    A few commenters stated that since the decision-making process may 
not be performed by an engineer, the use of the term engineering is 
inappropriate. In the NPRM, EPA states that sound engineering or 
professional judgment means a ``combination of the use of logic and 
operational experience, with methods of calculation that are practical, 
based on training, experience and education'' (60 FR 3997). EPA agrees 
that in many cases the professional making the decision may not be an 
engineer. Therefore, EPA will use the term, ``sound professional 
judgement.''
    One commenter stated that sound professional judgement should be 
employed to determine where and which initial and follow-up 
verification tests should be performed, whenever 

[[Page 40431]]
leaks that are subject to the leak repair requirements for industrial 
process refrigeration equipment must be repaired. EPA agrees with this 
commenter.
    Another commenter stated that fluorescent dye combined with a leak 
monitoring UV light source should be considered an acceptable initial 
or follow-up verification test. In the NPRM, EPA discussed three types 
of verification tests. EPA states that the three discussed represent 
examples that EPA believes would be considered acceptable forms of 
verification tests. EPA states that other types of tests may exist (60 
FR 3997). EPA believes that sound professional judgement should be 
employed when determining the type of verification test that is 
appropriate for the particular leak. Therefore, it is not necessary for 
EPA to state which tests are acceptable. However, EPA would like to 
clarify that any verification test must be acceptable under all other 
regulatory requirements. For example, if fluorescent dye was combined 
with an ozone-depleting substance, where that ozone-depleting substance 
is used to propel the dye from a pressurized dispenser into the 
appliance, that application would be banned under the nonessential 
products ban promulgated under section 610 of the Act.
    EPA received one comment regarding the need to perform verification 
tests if the owner or operator determines that the industrial process 
refrigeration equipment should be retrofitted. For example, if the 
leaky equipment is shut down to perform repairs on the heat exchanger, 
and as the repair work begins, it is determined that the compressor is 
about worn out, the owner or operator may choose to retrofit or replace 
the system rather than complete repairs. The commenter believes that 
under these circumstances the obligation to perform the verification 
tests should be lifted. EPA agrees with this commenter. If the owner or 
operator is switching to a retrofit, replace, or retire mode, the 
obligation to bring the leak rate below 35 percent is suspended. 
Therefore, it is not necessary to perform tests to verify the success 
of individual leak repair efforts.
    EPA received an additional comment concerning the use of 
verification tests when the owners and operators are retrofitting or 
replacing the appliance. The commenter was concerned that the proposed 
language would obligate owners or operators to perform verification 
tests on replaced or retrofitted equipment. EPA agrees that these tests 
are not necessary for replaced or retrofitted equipment.
6. Fixing Other Leaks
    EPA received one comment regarding what happens if EPA disapproves 
the parameters for fixing leaks. In Sec. 82.156(i)(4), EPA stated that 
if repairs fail a follow-up verification test, the owner or operator 
could choose the option of doing whatever it takes to get the rate 
below the threshold within 180 days. It is anticipated that the owner 
or operator will follow parameters from earlier notifications. EPA may 
disapprove of those parameters; however, the parameters are deemed 
approved if EPA does not object within 30 days after receiving notice. 
The commenter supports this approach, but is concerned about what 
happens if EPA disapproves. In such cases the commenter suggests that 
the owner or operator and EPA should reach agreement on what parameters 
will be used. EPA agrees with the need to specify what will occur if 
the EPA objects to the parameters. If this situation occurs, in all 
likelihood, EPA will consult with the owner or operator. However, EPA 
and the owner or operator may not necessarily ``reach agreement.'' 
Through this action, EPA will specify that where EPA objects to the 
submitted parameters for bringing the overall leak rate below the 
applicable threshold, EPA will select appropriate parameters. In all 
likelihood, this selection will be made expeditiously since the 
applicable timelines will remain in effect. If such disapproval 
significantly limits the ability of the owners or operators to comply 
with appropriate timelines, EPA may consider granting an extension. If 
no agreement can be reached, it is anticipated that the course of 
action may be to retrofit or replace the affected industrial process 
refrigeration equipment. Under such circumstances, EPA may need to 
consider providing additional time for the owners or operators of the 
affected industrial process refrigeration equipment to complete 
retrofit or replacement activities.
    EPA received several comments supporting the provision relieving 
the owner or operator of the obligation to retrofit or retire 
industrial process refrigeration equipment where, within 180 days, the 
owner or operator has reduced the leak rate to below 35 percent by 
completing other repairs and tightening the operation of the appliance. 
These commenters believe that by reducing the amount of refrigerant 
being released, the owner or operator has met the goals of the leak 
repair provisions although the original leak remains.
    EPA received one comment suggesting that the Agency should permit 
one year instead of 180 days. The commenter believes that providing 
additional time will not detract from the requirement to retrofit or 
replace the appliance. EPA disagrees with this commenter. EPA believes 
that to complete retrofit or replacement activities within one year, it 
would be necessary to perform preparatory work on the same appliance. 
The lack of clear direction between retrofitting and repairing the 
appliance that late in the year may influence the ability of the owner 
or operator to complete retrofit activities. Furthermore, EPA believes 
that where the leak rate can be reduced to below the applicable 
threshold, 180 days should be sufficient time. The leak repair 
provisions being promulgated through this action are designed to 
provide greater flexibility without compromising the goals of reducing 
emissions. To achieve this goal EPA proposed the shortest amount of 
additional time necessary to complete repairs. Therefore, EPA does not 
believe it is necessary to further extend this provision.
    EPA received one comment requesting that the Agency specify that 
Sec. 82.156(i)(3)(v) only apply where repairs have failed a follow-up 
verification test and the owners or operators have chosen to do 
whatever it takes to bring the leak rate below the applicable 
threshold. EPA agrees that there are other options available to the 
owners or operators. Therefore, through this action, EPA will clarify 
that the owner or operator may choose this option, but that other 
options, such as retrofitting the appliance, also exist.
    EPA received several comments supporting the need to switch to the 
retrofit or replacement mode after discovering that successful leak 
repairs cannot be made in accordance with the necessary timelines. EPA 
received one comment suggesting that when a switch is made from a 
repair mode to a retrofit/replacement mode, the owner or operator of 
that industrial process refrigeration equipment should be held to the 
normal deadlines for retrofitting or retiring the appliance. The 
commenter stated that if the owner or operator has spent a month trying 
to fix the leaks, the owner or operator would have eleven months left 
for retrofitting, replacing, or retiring the equipment. EPA agrees with 
this commenter.
    EPA received several comments supporting the need for additional 
time to complete the retrofit or retirement of industrial process 
refrigeration equipment beyond one year. One commenter stated that EPA 
should 

[[Page 40432]]
clarify however, that additional time should be permitted under 
Sec. 82.156(i)(7)(i), not one additional year. In some cases, more or 
less than one year is appropriate. One commenter stated that additional 
time, up to one additional year, should be permitted under 
Sec. 82.156(i)(7)(ii). The commenter also stated that where additional 
time beyond the initial additional ``year'' is permitted in 
Sec. 82.156(i)(7)(iii), EPA should explicitly state that additional 
time beyond the one year is permitted, not an additional year. EPA 
agrees with these commenters.

F. Industrial Process Shutdown

    EPA received several comments supporting the extension to complete 
repairs when an industrial process shutdown is required. One commenter 
suggested that the term process shutdown should not be used 
interchangeably with the term industrial process shutdown. To provide 
clarity and consistency, the commenter believes the Agency should use 
and define the term industrial process shutdown exclusively. EPA agrees 
with this commenter. Therefore, EPA will define and use the term 
industrial process shutdown, instead of process shutdown.
    EPA received one comment stating that the need for additional time 
beyond the 120 days permitted for an industrial process shutdown may 
not be evident within the initial 30-day repair period. The commenter 
is concerned that an initial determination that no other federal, 
state, or local regulations apply may be made by the owners or 
operators. It is also possible that within the initial 30 days the 
owners or operators may not realize that the appliance requires parts 
that are unavailable. After the industrial process shutdown is 
complete, possibly as late as day 115, such a determination may be 
made. Under those circumstances, the commenter is concerned that 
additional time beyond the 120 days would no longer be available. EPA 
understands these concerns. While the Agency believes that in most 
cases the owner or operator will know that other regulations will delay 
repairs or that the parts are not readily available within 30 days, it 
is possible that such a determination will not be known in advance of 
completing the industrial process shutdown. Therefore, through this 
action, EPA will specify that additional time is available beyond the 
30-day or 120-day repair period where other federal, state or local 
regulations are applicable or where the necessary parts are 
unavailable. Only the additional time needed to receive delivery of the 
necessary parts or comply with the pertinent regulations will be 
permitted.

G. Retrofitting or Replacing Equipment

    EPA received several comments concerning retrofitting or replacing 
equipment. Commenters supported the proposal to permit additional time 
where specific circumstances exist. Comments about specific aspects of 
the proposal are discussed below.
    EPA received one comment asking for clarification regarding the 
process of notification to EPA if repairs done in good faith are not 
successful and retrofitting must be pursued. The concern is that there 
may be cases where a repair requires an industrial process shutdown. If 
the ``clock'' for notifying EPA begins the date the leak rates are 
discovered, there may be cases where six months has passed. Therefore, 
the commenter suggested that EPA permit six months from the date the 
decision to retrofit is made. EPA disagrees with this commenter. EPA 
believes six months provides enough time both when the 30-day timeline 
and 120-day timeline apply. The owners or operators would have 
acceptable time to make repairs, to determine that retrofitting is 
appropriate, and to submit any required information.
    EPA received a few comments concerning returning equipment to 
operation after the decision to retrofit, replace, or retire the 
appliance has been made. One commenter stated that EPA should allow an 
owner or operator to start up and operate appliances that the owner or 
operator determines, after attempting to repair leaks, cannot pass an 
initial verification test, if the owner or operator plans to retrofit 
or replace the appliance in accordance with Sec. 82.156(i)(6) or such 
longer time as may apply in accordance with Sec. 82.156(i)(7) (i), (ii) 
and (iii) or Sec. 82.156(i)(8) (i) and (ii). EPA agrees with these 
commenters. If the owners or operators of affected industrial process 
refrigeration equipment attempt to repair leaks, but determine the need 
to retrofit or replace the equipment in accordance with the provisions 
promulgated through this action, the affected industrial process 
refrigeration equipment may be brought back on line without an initial 
or follow-up verification test.
    EPA received related comments concerning the ability of the owners 
or operators to switch from the repair to the retrofit mode, and from 
the retrofit to the repair mode. One commenter stated that as long as 
all applicable deadlines are met, the owners or operators should have 
the flexibility to change their initial determination of retrofitting 
or repairing the industrial process refrigeration equipment. EPA agrees 
that as long as all applicable deadlines are met, the owners or 
operators may change their initial decision to retrofit, replace, or 
repair leaky industrial process refrigeration equipment.
    One commenter stated that the proposed requirement to develop 
retrofit plans within 30 days would be difficult for large industrial 
process refrigeration equipment. It may take time for the owners or 
operators to determine the cause of the leak and whether the best 
course of action is to repair or retrofit the appliance. The commenter 
requests that EPA permit 90 days for the owner or operator to obtain 
all the appropriate information to complete a valid retrofit or 
retirement plan. The commenter believes this is consistent with EPA's 
recognition that it may take time for the owners or operators to 
evaluate the available options. EPA agrees that it may take time to 
evaluate the available options; however, EPA does not believe it is 
necessary to permit 90 days to develop retrofit or retirement plans. 
EPA believes that system mothballing and the ability to switch from a 
repair mode to a retrofit mode provide the owner or operator of the 
affected appliance with sufficient time to develop such plans. EPA 
believes that particularly where the type of leak is unknown, most 
owners or operators will attempt to identify and repair the leak first. 
Therefore, EPA does not believe it is necessary to require additional 
time to develop retrofit or retirement plans.
    EPA received one comment regarding when the clock starts for 
retrofitting a system. The commenter is concerned that 
Sec. 82.156(i)(3)(ii) permits the owner or operator of industrial 
process refrigeration equipment to determine the need to retrofit 
industrial process refrigeration equipment after a failed follow-up 
verification test; however, Sec. 82.156(i)(6) states that all work 
under the plan must be completed within one year of the plan's date and 
the plan must be developed within 30 days of discovering the leak. The 
commenter is concerned with this apparent inconsistency. EPA agrees 
with this commenter's concern. While in general, plans are to be 
developed within 30 days of discovering the leak, this final action 
provides opportunities for the owners or operators to switch to a 
retrofit mode. EPA will modify the language in Sec. 82.156(i)(6) to 
reflect these scenarios.
    EPA received one comment requesting, that if the owner or operator 
intended to retrofit or replace an 

[[Page 40433]]
appliance, and developed an appropriate plan, and if the owner or 
operator later determines that the normal charge of the appliance was 
not correctly calculated, the owner or operator should be relieved of 
the obligation to retrofit or replace the appliance and therefore, be 
able to withdraw the plan. The commenter states that if the appliance 
was overcharged, the calculations would be incorrect. EPA understands 
these commenters concerns. As discussed above, EPA realizes that owners 
or operators may not have kept records of refrigerant charges prior to 
the promulgation of regulations under section 608. Therefore, EPA will 
permit the owner or operator to withdraw a retrofit or retirement plan 
if the calculations of the full charge used to determine the leak rate 
were incorrect. However, the owner or operator retracting such a plan 
will need to demonstrate clearly that the original determination was 
incorrect and why. EPA will be particularly concerned where the fourth 
methodology for determining the full charge was used. Where a range is 
used to establish the full charge and that range is altered, EPA is 
requiring that records be maintained and be made available to EPA upon 
request.

H. Recordkeeping and Reporting Requirements

    EPA received several favorable comments regarding the proposed 
recordkeeping and reporting requirements. One commenter stated that 
although the recordkeeping and reporting requirements are more detailed 
than those promulgated in May 1993 and that they do constitute an 
additional burden, the commenter supports the requirements. The 
commenter believes the requirements are necessary to allow EPA the 
opportunity to verify that best efforts were expended to find and 
repair leaks. Another commenter stated that the provisions mostly 
appear necessary and appropriate, in order to assure compliance. This 
commenter did offer minor suggestions for the requirements that are 
discussed below. EPA received two negative comments on recordkeeping 
and reporting comments. One commenter stated that the provisions appear 
to be extremely burdensome and time consuming. This commenter feels 
that more flexibility should be provided and that incentives to 
expeditiously fix leaks and even retrofit will be derived from the cost 
of refrigerant. The commenter further stated that the NPRM contains 12 
separate reporting items subject to noncompliance enforcement actions 
and strict deadlines while providing no environmental benefit. The 
second commenter stated while most of the requirements for 
recordkeeping and reporting seem justified, Sec. 82.166(n) should not 
include recordkeeping or reporting requirements for Sec. 82.156(i) (3) 
(iii), (iv), and (iv) because they are too burdensome. EPA disagrees 
with these commenters. This rulemaking, in its entirety, is designed to 
provide greater flexibility to the industry. The rule will alleviate 
stringent repair and retrofitting timelines and allows for more 
flexible approaches for lowering the overall leak rate of affected 
appliances. EPA has proposed and today is adopting reporting and 
recordkeeping requirements in conjunction with the more flexible 
approach to ensure compliance with this less stringent scheme. EPA 
recognizes that the reports themselves do not constitute an 
environmental benefit. However, ensuring compliance with this new leak 
repair scheme does provide a benefit. The three specific provisions 
cited by the second commenter are pertinent to EPA. One provision 
reports the results of a failed follow-up verification test. This 
failure is a trigger for the owner or operator to choose a new course 
of action. Notification to EPA of the failure is important and would 
accompany other required information. The other two provisions 
communicate the results of either successful second repair efforts or 
tightening other aspects of the appliance to reduce the leak rate below 
the threshold. Since these events result in relieving the owner or 
operator of having to retrofit or replace the appliance, it is 
essential for the owner or operator to notify EPA. These recordkeeping 
and reporting requirements are not always required. If the owner or 
operator of the industrial process refrigeration equipment can complete 
repairs successfully during the initial 30 days, there are no 
applicable recordkeeping or reporting requirements.
    One commenter suggested that EPA clarify that only the information 
listed in Sec. 82.166 (n),(o) and (p) must be maintained. The commenter 
suggested several other language changes to ensure an understanding of 
the terminology used. Particularly, the commenter suggested and EPA 
clarified through the terms, ``fix all other outstanding leaks,'' ``on-
site,'' ``refrigeration facility,'' and ``time changes.'' Another 
commenter suggested that EPA clarify under what circumstances specific 
data elements should be included. EPA has changed the language in 
Sec. 82.166 (n), (o), (p), and in the newly added (q) so that these 
sections clearly reflects EPA's intent.
    EPA received comments regarding notification to EPA of changes from 
the original estimates concerning repair work. One commenter stated 
that it was unclear and confusing in both the preamble and the 
regulatory language regarding time changes for completion of work from 
the original estimates. The commenter believes that EPA should require 
notification only if the estimated date of completion of work changes 
and results in moving the completion date forward. Other commenters 
noted that if EPA reviewed every adjustment in the affected repair 
schedules, EPA would receive many unnecessary notices and companies 
would face additional compliance burdens. EPA agrees with these 
commenters. EPA is only concerned when the estimated date of completing 
work results in extending the date of completion, thus increasing the 
potential for refrigerant releases. Through this action EPA will change 
the proposed regulatory language to state that when the repair schedule 
results in extending the date of completion, the reasons for these 
changes must be documented and submitted to EPA within 30 days of 
discovery of the change in timing.
    EPA received comments concerning the potential for the owners or 
operators of industrial process refrigeration equipment to be placed in 
a situation where they will not be able to comply with their original 
schedules because the vendor is unable to meet the delivery schedule 
previously supplied to the owner or operator. For example, if a vendor 
quotes 20 weeks for delivery and in week 18 changes that estimate to 36 
weeks, the owners or operators of the affected appliances will be 
forced to reconfigure their installation schedules. EPA understands the 
concerns raised by these commenters. If a critical component is 
delayed, this might influence whether the owner or operator can meet 
their schedule. EPA is aware that often a retrofit will involve several 
vendors. In some cases non-critical components may be delayed. It may 
be possible to rearrange the schedules to install delayed parts later. 
Where these parts must be on hand for work to proceed, delays in 
delivery by the vendors could result in missed deadlines by the owners 
or operators. Therefore, through this action, EPA will permit an 
extension of the original deadlines where delays by vendors limit the 
ability of the owners and operators to proceed with their retrofit or 
replacement activities. Extensions will be based on the delivery date 
for the necessary components. 

[[Page 40434]]

    EPA received one comment requesting that instead of filing for 
additional time beyond the initial one-year period six months after the 
expiration of the 30-day period following the exceedance of the 35 
percent leak rate, the owner or operator of the industrial process 
refrigeration equipment should submit information requesting additional 
time 10 months from the expiration of the 30-day period. The commenter 
argues that since the materials involved in construction of custom-
built equipment may not normally be used by a refrigeration vendor, it 
is common for delivery dates to slip. The commenter believes that an 
owner or operator may request additional time even where it is unclear 
that such time is actually necessary. However, if the owner or operator 
must make the decision to request additional time at 10 months instead 
of six months, the owner or operator may be more realistic in his/her 
evaluation. While EPA understands these concerns EPA does not believe 
it is appropriate to postpone the date. EPA believes that in most cases 
it will be clear at six months if additional time will be necessary. 
Furthermore, EPA would prefer that those who are unsure if an extension 
will be necessary still notify the Agency. If EPA believes the request 
is unjustified, EPA can notify the owner or operator of such a 
determination. It would be inappropriate for the owners or operators to 
make such requests at the 10-month mark where EPA has 60 days to notify 
the owner or operator if the request was rejected.
    EPA received comments concerning the need to clarify that in 
particular circumstances, all the information listed in Sec. 82.166(n) 
would not need to be included in a report submitted to EPA. EPA agrees 
with this commenter. In the NPRM (60 FR 3995) EPA indicates that under 
certain circumstances particular items listed in Sec. 82.166(n) would 
not be expected. However, EPA did not include this information in the 
regulatory text. Moreover, EPA understands that while combining the 
recordkeeping information list appears to simplify the provisions, 
misinterpretations could arise. Therefore, EPA has clarified the 
recordkeeping provisions in this final action by stating under what 
circumstances specific data elements are or are not required.
    EPA received one comment regarding the need to modify the language 
in Sec. 82.166(n) and (o). In the NPRM these provisions used the 
language, ``industrial process refrigeration equipment,'' while the 
requirements are also applicable to the federally-owned commercial and 
comfort-cooling appliances. EPA agrees with these comments and has made 
the necessary changes.
    One commenter stated that EPA should revise Sec. 82.156(i)(7)(i). 
The NPRM states that information, in accordance with Sec. 82.166(o), 
will be submitted to EPA and within 60 days EPA will notify the owner 
or operator of its determination. The commenter suggests that instead, 
the request for additional time should be deemed acceptable unless the 
Agency notifies the commenter within 60 days. EPA disagrees with this 
commenter. EPA has permitted for an automatic process of granting up to 
one year where the conditions of Sec. 82.156(i)(7)(ii) apply. EPA 
distinguished between these two provisions because if the conditions of 
Sec. 82.156(i)(7)(i) apply, the Agency can grant as much time as 
necessary. This provision is far more open-ended than 
Sec. 82.156(i)(7)(ii). Therefore, EPA continues to believe it is 
necessary for the Agency to review the request for additional time, 
agree that time to the extent reasonably necessary can be granted, and 
notify the owner or operator of EPA's decision.
    EPA received one comment requesting notification of the proper 
address for submitting reports to the Agency. EPA will cross reference 
the address listed in Sec. 82.160: Section 608 Recycling Program 
Manager, Stratospheric Protection Division, 6205J, 401 M Street, SW., 
Washington, DC 20460.

I. Purged Refrigerants

    EPA received several comments regarding the treatment of purged 
refrigerants that are destroyed. The commenters agreed that if the 
refrigerant is not vented to the atmosphere, but is instead destroyed, 
the material did not leak and should not be included in any leak rate 
calculations. Several commenters suggested that records be kept on-site 
by the owners or operators and be made available to EPA upon request. 
One commenter stated that a requirement to notify EPA will prove to be 
a resource drain for EPA and will only provide a minimum environmental 
benefit. EPA agrees with these commenters and will require that records 
indicating the amount of purged and destroyed refrigerant be maintained 
and made available to EPA upon request.
    One commenter requested that EPA exempt from leak detection 
determinations any refrigerant purged and destroyed where the 
destruction can be verified, regardless of the technology utilized. The 
commenter stated that refrigerant that is leaked into a system, then 
converted to elemental compounds or other non-ozone-depleting 
substances, by a process reactor or a hydrochloric acid burner should 
qualify for this exemption. In discussions with the Agency, commenters 
indicated that where an owner or operator decides to take credit for 
destroying purged refrigerant, it will be possible to find an 
appropriate method for verifying how and how much refrigerant was 
destroyed, if the refrigerant is ``completely destroyed'' for purposes 
of the phaseout regulations promulgated under sections 604 and 606 of 
the Act. EPA agrees with these commenters. While effective destruction 
of purged refrigerants can take place in a number of technologies, EPA 
does wish to ensure high efficiency. Therefore, so that purged 
refrigerant is not counted as part of the leak rate, today's rule will 
require purged refrigerant to be destroyed at a destruction efficiency 
of 98 percent or greater, consistent with both the phaseout and the 
labeling rules. Any destruction technology may be used for the purposes 
of destroying purged refrigerants under this rule, as long as the 
destruction efficiency is at least 98 percent.
J. Federally-Owned Chillers

    EPA received several comments regarding the proposed requirements 
for federally-owned chillers. Several commenters supported the proposed 
language with only minor changes. A few commenters stated that EPA 
should broaden the requirements to allow additional time for non-
federally-owned appliances to repair leaks. The commenters were 
concerned with manufacturing backlogs. One commenter stated that the 
Federal government should abide by the same rules as industry, noting 
that if federal entities are having trouble meeting timelines, large 
private companies may also be having the same problems. One commenter 
stated that if federal facilities cannot meet the time frames, then 
state and local governments may have similar difficulties. The 
commenter believes that giving an extension of time only to federal 
facilities could be viewed by the states and local governments as a 
mandate to them and an excuse for the federal government. One commenter 
stated that since the federal procurement process is governed by 
federal regulations a specific exemption was not necessary.
    Several commenters stated that they are troubled that EPA has 
proposed to extend the sound professional judgment 

[[Page 40435]]
and verification testing requirements to the owners and operators of 
federally-owned commercial refrigeration appliances for three reasons. 
First, because the owners or operators were not part of the settlement 
agreement between EPA and CMA. Second, because the commenters believe 
that EPA incorrectly stated that minor aspects of this rulemaking 
affect federally-owned chillers. Finally, because the commenters 
believe that this rulemaking constitutes an additional burden and that 
further legal action may be taken by the owners or operators of 
federally-owned chillers.
    EPA understands all the concerns submitted by the commenters. In 
the NPRM, EPA states that the Agency received information from the 
Department of Energy (DOE) indicating a need for the proposed 
extension. EPA discussed with DOE the proposed language, including the 
use of verification tests. DOE understood and agreed with the 
requirements. Comments received during the public comment period from 
DOE suggest clarifications to the proposed regulatory language. DOE is 
the only federal entity to submit comments specific to this 
requirement.2 EPA believes that in most cases federal entities 
should be able to repair appliances within 30 days or retrofit/replace 
equipment within one year, and that only under limited circumstances 
will this extension apply to federally-owned appliances.

    \2\ Additional comments were received by the Tennessee Valley 
Authority concerning electricity generated by a nuclear power 
reactor, not the exemption for federally-owned chillers.
---------------------------------------------------------------------------

    EPA did not receive any comments during the public comment period 
from state or local governments regarding this proposal. Also, EPA 
received no information regarding the need for extensions for state and 
local governments prior to issuing the NPRM. Since EPA often receives 
formal and informal comments from state and local entities, EPA can 
only conclude that state and local entities do not believe an extension 
is necessary. The only comments regarding such an extension for state 
and local entities came from private-sector organizations.
    One commenter stated that since the federal procurement process is 
governed by federal regulations, a de facto exemption exists without 
EPA specifying an exemption. EPA disagrees with this commenter. EPA is 
today providing additional time based on compliance with other federal, 
state, and local regulations for industrial process refrigeration 
equipment. This provision is applicable for both private and publicly 
owned or operated industrial process refrigeration equipment. However, 
it is not applicable to for comfort-cooling or commercial appliances. 
An additional exemption for federally-owned chillers not used for 
industrial process refrigeration equipment is necessary. Without such a 
provision, additional time based on federal, state, and local 
regulations would not apply.
    EPA understands that often large private-sector organizations may 
have complicated procurement requirements. However, private-sector 
organizations do not need to go through public notice and comment to 
amend procurement practices.
    Private-sector organizations can effect changes in order to ensure 
compliance. EPA proposed this extension because federal government 
officials are bound to follow federal regulations regarding the 
purchasing. There are only limited circumstances for expediting a 
specific purchase or changing the procedures quickly. EPA recognizes 
that the federal government is addressing the needs to provide more 
flexibility for contract and procurement officers to expedite the 
purchasing of the most cost-effective services and supplies. These 
changes, however, have not yet alleviated all the hurdles faced by 
those procuring appliances subject to this rulemaking.
    In the NPRM, EPA focused on the procurement side of the issue. 
Based on additional comments from DOE, EPA understands that, in 
reality, the concerns raised by DOE also address how funding is 
appropriated, as well as environmental and health concerns associated 
with specific appliances owned or operated by DOE.
    EPA recognizes that most of the appliances DOE is concerned with 
are unique, even amongst the appliances owned or operated by the 
federal government. DOE believes that in most cases it will be able to 
comply with the 30-day and one-year requirement. However, appliances 
used in the production of nuclear weapons and appliances located in 
areas subject to radiological contamination must comply with a unique 
set of environmental and public safety activities. It may be necessary 
to confront specific radiological concerns prior to beginning the 
process of locating and repairing leaks.
    In the NPRM, EPA stated that the Agency intended for this exception 
to only be used in limited cases. EPA continues to believe that an 
extension for federally-owned appliances is appropriate; however, EPA 
recognizes that the proposed extension was overly broad. For example, 
DOE uses hot cells at a number of its facilities to process radioactive 
and radioactively-contaminated materials for research laboratories and 
medical isotope production. Refrigeration appliances serving hot cells 
may be standard chillers that are used for safe operation by the 
maintenance of specific temperatures. Hot cells use shielding windows 
for viewing manipulator operations. These windows are filled with 
mineral oil or zinc bromide fluids, that also act as radiation shields. 
If temperatures rise, the window gaskets could leak, the shielding 
fluid levels could fall, and the hot cell contaminants might be 
released, thus, posing a potentially serious safety hazard to the 
operators. If a refrigeration appliance serving a hot cell fails or 
leaks excessively, it may take several weeks for the radioactive 
materials in the cell to be placed in a stable condition, such that the 
materials can be handled safely. The use of temporary cooling 
appliances in these circumstances is not a viable option due to nuclear 
safety requirements. Thus, similar to industrial process equipment, the 
hot cell operations must be shut down to minimize safety hazards, and 
such a shutdown may take several weeks to be accomplished. In these 
situations, repair work may not be able to be completed within 30 days, 
since that work must be performed under safe conditions. EPA believes 
that there are a limited number of appliances that are confronted with 
this or similar situations. Therefore, the extension of the 30-day 
repair requirement would be limited. In most cases, similar to where an 
industrial process shutdown is required, 120 days will permit for the 
safe shutdown of the hot cells and for repair work to occur.
    EPA estimates that even where radiological contamination exists, 
extensions will be used only to a limited degree. Moreover, EPA does 
not believe it is appropriate to broaden this extension to appliances 
owned by state and local governments since EPA is not aware of any 
state or local government faced with an analogous scenario. Therefore, 
federally-owned commercial and comfort-cooling refrigeration appliances 
will be permitted 120 days for repairs to be completed if the appliance 
is operating in, or sustaining activities and located in, 
radiologically contaminated areas.
    EPA continues to believe that federal procurement and 
appropriations requirements influence the ability of the federal 
government to retrofit/replace/retire an appliance within one year. As 
stated above, while the federal government is attempting to streamline 
many procurement practices, the types 

[[Page 40436]]
of appliances and their associated costs currently limits the ability 
of the federal government to comply with a one-year timeframe. In 
particular, securing funds to retrofit an appliance subject to 
radiological contamination may require a lengthy process. In most 
cases, the owners or operators would wait for notification that the 
funds have been allocated before requesting proposals. Therefore, EPA 
will provide additional time beyond the initial one year, to the extent 
necessary, where procurement or appropriations requirements interfere 
with the ability of a federal entity to retrofit/retire/replace an 
appliance within one year.

K. Mothballing

    EPA proposed suspending the time-relevant leak repair requirements 
promulgated under Sec. 82.156(i) for appliances that are temporarily or 
permanently mothballed. In the NPRM, EPA states that it may be possible 
for the owner or operator of the appliance to discontinue use 
temporarily, perhaps on a seasonal basis. For example, it may be 
reasonable to shut down or mothball a comfort-cooling appliance for a 
period of time.
    The NPRM further states that this type of system mothballing would 
not be the same as an industrial process shutdown undertaken to repair 
particular leaks found in industrial process refrigeration equipment or 
perform other maintenance activities. Also, this type of shutdown or 
mothballing would not be the same as being taken off-line due to a 
power outage or event. The NPRM defines system mothballing as an 
intentional shutting down of the refrigerant appliance undertaken for 
an extended period of time by the owners or operators of that 
facility--not for the purposes of servicing or repairing the 
appliance--where the refrigerant has been evacuated. The NPRM further 
states that if the appliance is temporarily mothballed, EPA believes it 
is appropriate to suspend the time-relevant repair and/or retrofit 
requirements while the appliance is effectively inoperative. For 
example, if a comfort-cooling appliance with over 50 pounds of 
refrigerant has a leak rate of more than 15 percent per year, the leak 
or leaks must be repaired or the appliance must be retrofitted within 
one year. However, if after discovery of the exceedance of the leak 
rate, the owner or operator voluntarily mothballs the appliance for a 
period of several months or years, EPA believes it would be appropriate 
to suspend the need to repair leaks or retrofit the appliance during 
the same time period. Therefore, if the appliance operated for five 
days after discovery of the exceedance of the leak rate, then shut down 
for 2 months, when the appliance returned to operating, the owner or 
operator will still have 25 days to repair the leaks. The applicable 
verification tests would need to be employed.
    EPA received several comments supporting the suspension of time-
relevant repair or retrofit requirements if the owner or operator 
temporarily mothballs the affected appliance. However, several 
commenters suggested that the time-relevant requirements should also be 
suspended while repair or retrofit work is occurring. One commenter 
stated that refrigeration systems are designed to provide maximum 
cooling; however, if the weather cools or the processes needing 
refrigeration are not operating at full production, or if there are 
several refrigeration systems supporting a facility, it may be possible 
to mothball a leaky appliance. This commenter and several others 
recommend that EPA suspend the ``clock'' whether the appliance is 
mothballed for the purposes of repair or not. The commenters stated 
that the basis for their concern is that if the appliance or an 
isolated section of an appliance has been evacuated to at least 
atmospheric pressure, only a limited amount of refrigerant is likely to 
be released. The commenters further stated that the intent of the 
rulemaking is to reduce the emissions of ozone-depleting refrigerants. 
The commenters believe that while mothballed, there would essentially 
be no emission of ozone-depleting refrigerants. Another commenter 
stated that EPA should focus on the amount of time that an appliance 
actually operates at an excessive leak rate and not the amount of time 
that a repair takes. Another commenter stated that it may take some 
time to determine that the leak rate is above the threshold. After that 
determination is made, it may take time for a part to be ordered. The 
commenter is concerned that if the system mothballing definition 
excludes appliances shut down for the purposes of completing repairs, 
the owner or operator facing the above scenario would be forced into a 
retrofit/replacement mode. One commenter suggested that recordkeeping 
and reporting requirements could be used to monitor the appropriateness 
of using this provision.
    EPA understands the concerns raised by these commenters. The 
intention of Section 608 is to limit refrigerant emissions, not to 
determine how long it should take to repair an appliance.
    EPA intended to permit system mothballing because the risk of 
releases from evacuated appliances is minimal. EPA did not intend to 
preclude repair work from occurring while an appliance has been 
mothballed. Instead, EPA was attempting to distinguish between system 
mothballing and other types of shutdowns, for different purposes, 
particularly industrial process shutdowns. In most cases, EPA believes 
that system mothballing may constitute extensive shutdowns. In many 
cases, the appliance could be mothballed for a season.
    EPA received comments describing scenarios where mothballing 
appliances and simultaneously completing repairs would be a practical 
solution. Examples include manufacturing processes that produce 
material that have only a seasonal demand, where a spare or backup 
appliance can be brought on line, and where there is excess capacity in 
another refrigerant appliance that can be used to replace the capacity 
lost by mothballing an appliance. Commenters believe that evacuating 
the appliance to at least atmospheric pressure, and allowing the repair 
activities to occur, will limit emissions. Commenters further recognize 
the need to complete verification tests regardless of the conditions 
under which the repair work was conducted.
    EPA agrees that completing repairs while the appliance is evacuated 
equates to almost no risk of emissions. Therefore, through this action, 
EPA is modifying the proposed definition of system mothballing. EPA 
will delete the language ``not for purposes of servicing or repairing 
the appliance'' from the definition of system mothballing. However, to 
ensure that for industrial process refrigeration equipment, 
verification tests still occur, EPA will include language stating that 
an initial verification test be completed prior to returning these 
appliances to normal operating conditions and that a follow-up 
verification test will be required within 30 days.
L. Grandfathering

    EPA received one comment regarding the treatment of industrial 
process refrigeration equipment that began retrofit or replacement 
activities prior to the promulgation of this rulemaking. A company that 
discovered a leak in early 1994 that exceeded 35 percent developed a 
retrofit plan under the existing requirements. It now has become 
apparent that the company will require additional time beyond the one 
year and if these regulations were already promulgated, the company 
most likely would have qualified for additional time. Since today's 
action was not already effective, and therefore 

[[Page 40437]]
no extensions could be applied for, the commenter is concerned with how 
this appliance will be treated. EPA believes that in this case good 
faith efforts were made by the owner or operator of industrial process 
refrigeration equipment to meet the existing requirements prior to the 
stay. In cases where the owners or operators have developed plans and 
made good faith efforts to retrofit or retire appliances prior to the 
promulgation of today's action, and where these efforts are not yet 
complete, the owners or operators must develop a plan and complete all 
retrofit or retirement actions by August 8, 1996. The owners or 
operators are permitted to provide for extensions beyond August 8, 
1996, in accordance with Sec. 82.156 (i)(7) and (i)(8).

M. Terminology

    EPA received comments asking the Agency to clarify, modify, and/or 
ensure consistency with EPA's use of certain terms, including but not 
limited to ``facility,'' ``system,'' and ``appliance.'' EPA has 
reviewed the regulatory text and the preamble to incorporate 
appropriate changes. EPA anticipates that these changes should lessen 
any confusion in distinguishing between a facility, a system, and an 
appliance. EPA also has considered all other comments concerning 
grammar and language and believes they have been appropriately 
addressed in the preamble and regulatory text.
    EPA received one comment suggesting that where the regulatory text 
states that a leak rate should be reduced to 35 or 15 percent, the 
language should be amended to state 35 or 15 percent and below in order 
to include all universe of allowable leak rates. EPA agreed with this 
commenter and has made the necessary changes.
    EPA received comments requesting additional cross-referencing in 
the regulatory text. One commenter suggested that particular cross-
references should be added, deleted, or modified to more accurately 
indicate the Agency's intent. EPA believes it has addressed all these 
concerns.

N. Regulatory Impact Analysis

    It has been determined by OMB and EPA that the proposed amendment 
to the final rule is not a ``significant regulatory action'' under the 
terms of Executive Order 12866 and is therefore not subject to OMB 
review under the Executive Order. EPA received one comment disagreeing 
with this determination. The commenter stated that though the rule 
provides for extensions for leak repair, the recordkeeping burdens make 
this option essentially useless. The commenter further states that if 
other leaks cannot be located within 180 days, the rule has a net 
effect of mandating retrofits. The commenter believes retrofitting one 
plant alone could exceed $10 million. That multiplied over an entire 
group of affected industries would deem the rule significant.
    EPA strongly disagrees with this commenter's view that this rule is 
significant. EPA did perform a Regulatory Impact Analysis (RIA) when 
the original regulations regarding section 608 were promulgated in May 
1993. This RIA is contained in Air Docket A-92-01. At that time, the 
costs associated with repairing and retrofitting appliances were 
considered. Today's action only lessens the impact of the original 
requirements by providing flexibility. The owners or operators of 
affected equipment have many options. One failed verification test does 
not immediately mean that retrofitting or replacing the appliance is 
the only option available as the only avenue. Furthermore, the 
provision permitting 180 days to decrease the overall leak rate of the 
industrial process refrigeration equipment was not contained in the 
original rulemaking. The owners or operators of a leaky appliance would 
have had to repair the leaks within 30 days or develop a retrofit or 
retirement plan. Any new recordkeeping or reporting requirements are 
necessary as a result of the more flexible approach. Most commenters 
agreed that these provisions were necessary. Moreover, as comments in 
the docket suggest, many of the data elements contained in the 
recordkeeping and reporting requirements were suggested by CMA and its 
members.
    EPA does not believe that this rulemaking substantially increases 
the burden on the regulated community. Moreover, EPA believes that is 
the impact of this rulemaking a more flexible less costly means for 
handling leaks.

O. Allowing Appliances To Be Pressurized To Slightly Above O PSIG

    EPA proposed to allow appliances to be pressurized up to 5 psig in 
order to change oil in industrial process refrigeration equipment. The 
NPRM (60 FR 4002) states that a small positive pressure is needed 
during oil changes to force the oil from its reservoir. Oil will not 
flow from a reservoir that is under vacuum. EPA stated that this 
approach will reduce emissions and thus will have an overall positive 
impact on the environment.
    EPA received comments regarding this issue. One commenter asked for 
EPA to reopen and extend the comment period. Since this provision is 
part of a settlement agreement with a court-ordered final signature 
date of July 31, 1995, EPA is unable to reopen the comment period at 
this time. Furthermore, EPA did provide a thirty-day comment period 
with the option of holding a public hearing if one had been requested, 
in accordance with the Administrative Procedures Act. Moreover, to the 
extent practicable, EPA has responded to all comments including those 
received after the close of the comment period.3

    \3\  This particular comment was received the evening of June 
15, 1995. The comment period closed February 21, 1995.
---------------------------------------------------------------------------

    Several commenters agreed with EPA's proposed approach, stating 
that permitting evacuation or pressurization to slightly above 0 psig 
would facilitate the removal of oil. One commenter stated that only a 
small amount of positive pressure is necessary because technicians 
would not let oil out at full system pressure since the oil would 
immediately turn into a large volume of froth.
    EPA also received comments disagreeing with the need to reduce 
pressure. One commenter stated that Sec. 82.156 and Sec. 82.158 should 
not apply to oil changes. The commenter stated that any unit that 
requires that the oil be changed is provided with proper valves for oil 
change. The only refrigerant that is vented is the refrigerant 
contained in the oil. The commenter believes that the oil will be 
heated using the system oil heaters to bring the oil up to the 
manufacturer's design temperature. The hot oil will contain the least 
amount of refrigerant possible for the system stand-by pressure. The 
commenter believes that any requirement to reduce the pressure of the 
system to 5 psig would add major costs to the preventive maintenance of 
the unit. A job that may take a few hours would become a two-day job in 
cases where the unit does not have a system receiver. A refrigerant 
recovery unit and tanks would have to be brought to and removed from 
the job site. The commenter believes that the rules as written allow 
for oil removal without changing the system pressure since no 
evacuation is necessary after the oil change and results in only a ``de 
minimis'' release of refrigerant. Another commenter stated that 
refrigerant entrained in oil is not subject to the regulations.
    EPA disagrees with these commenters' interpretations of the 

[[Page 40438]]
    regulations. Under the initial regulations promulgated under section 
608 and published May 14, 1993 (58 FR 28660), oil removal is considered 
a minor repair. Consistent with the requirements for all minor repairs 
the appliance must be brought to at least atmospheric pressure for oil 
removal.
    The settlement agreement between EPA and CMA was based on the need 
to provide greater flexibility to the regulated community. The 
inclusion of a proposed provision to allow a slight positive pressure 
was viewed as a relaxation of the current regulations. This implies 
that a significant part of the regulated community agreed with EPA's 
interpretation that under the May 14 rule, oil removal required 
evacuation to atmospheric pressure.
    Two commenters stated that EPA should not consider removing oil to 
be opening the appliance. One commenter stated that when the oil has 
been removed the valve is closed and the oil container is removed. The 
second commenter stated that the oil remaining in the sump is a barrier 
that will keep the refrigerant in the appliance. The impeller is a 
labyrinth seal with only .002-.003 inch clearance, and the valve 
through which the oil is drained is a small orifice. This commenter 
believes that if extreme precautionary measures are taken the appliance 
is not truly opened.
    EPA disagrees with these commenters. EPA believes that changing oil 
does constitute opening the appliance. Opening an appliance is defined 
as ``any service, maintenance, or repair on an appliance that would 
release class I or class II refrigerant from the appliance to the 
atmosphere unless the refrigerant were recovered previously from the 
appliance * * *'' (59 FR 55926). EPA believes that refrigerant would be 
released during an oil change, unless the refrigerant were recovered 
previously. One commenter recognized that such a risk exists by stating 
that there is a need for ``extreme precautionary measures * * * during 
oil changes'' and that only under those circumstances is the ``system 
not truly `opened' and there is little risk that refrigerant in the 
system will be vented to the atmosphere.'' EPA believes that the need 
to take ``extreme precautionary measures'' to prevent a release 
demonstrates that without such precautions a release is likely. 
Furthermore, EPA believes there is no way to assure that refrigerant is 
not released except to evacuate the appliance to 5 psig or below. 
Therefore, EPA continues to believe that removing oil constitutes 
opening the appliance.
    EPA is concerned not only with the bulk of the refrigerant charge, 
but also with the refrigerant entrained in the oil. EPA has stated in 
applicability determination #23 and in the preamble to the initial 
regulations (58 FR 28677) that after an appliance is reduced to 
atmospheric pressure, the refrigerant entrained in the oil is not 
subject to those regulations. EPA would like to clarify that where the 
refrigerant and oil have not been drawn to at least atmospheric 
pressure, section 608(c), the venting provision, would apply. 
Therefore, recovery of the refrigerant from that oil would still be 
required.
    During the settlement negotiations with CMA, CMA supplied 
information stating that the percentage of refrigerant entrained in oil 
for an appliance at 80 degrees fahrenheit could be 50 percent of the 
total volume of oil for HCFC-22. If the pressure is reduced to 5 psig 
the percentage of refrigerant is less than 5 percent for HCFC-22. EPA 
believes that this demonstrates that without a requirement to reduce 
the pressure or to recover that refrigerant in some other way, 
significant quantities of refrigerant will be released.
    One commenter suggested an approach that would recover the 
refrigerant in the oil through a less time-consuming method. The 
commenter suggested that instead of evacuating the refrigerant EPA 
should permit the oil to be drained into a secondary vessel that can be 
isolated from the chiller and evacuated to recover the refrigerant in 
the oil. EPA received another comment stating that this method would 
still be time-consuming and costly. After reviewing the comments, EPA 
believes that this method actually will be less time-consuming and 
costly than the current requirements. Those concerned with the time and 
cost involved with this procedure should consider whether their current 
practices are actually in violation of the regulations.
    EPA is concerned with preventing the release of the refrigerant 
through the opening of the appliance. Therefore, EPA believes that if 
the oil can be drained into a system receiver, where the system 
receiver can be isolated and evacuated to a pressure no greater than 5 
psig, the goal would be achieved. EPA believes this a reasonable 
alternative to the requirements currently in effect. Therefore, through 
this action, EPA will revise the regulations to permit appliances to be 
pressurized to slightly above 0 psig (but not to exceed 5 psig) during 
oil changes and/or to permit the oil to be drained into a system 
receiver where the technician will then recover the oil entrained in 
the refrigerant to 0 psig.

VI. Judicial Review

    Under Section 307(b)(1) of the Act, EPA finds that these 
regulations are of national applicability. Accordingly, judicial review 
of this action is available only by the filing of a petition for review 
in the United States Court of Appeals for the District of Columbia 
Circuit within sixty days of publication of this action in the Federal 
Register. Under Section 307(b)(2), the requirements of this rule may 
not be challenged later in judicial proceedings brought to enforce 
those requirements.

VII. Administrative Requirements

A. Executive Order 12866

    Under Executive Order 12866 (58 FR 51735, October 4, 1993), the 
Agency must determine whether this regulatory action is ``significant'' 
and therefore subject to OMB review and the requirements of the 
Executive Order. The Order defines ``significant'' regulatory action as 
one that is likely to lead to a rule that may:
    (1) Have an annual effect on the economy of $100 million or more, 
or adversely and materially affect a sector of the economy, 
productivity, competition, jobs, the environment, public health or 
safety, or State, local, or tribal governments or communities;
    (2) Create a serious inconsistency or otherwise interfere with an 
action taken or planned by another agency;
    (3) Materially alter the budgetary impact of entitlement, grants, 
user fees, or loan programs or the rights and obligations of recipients 
thereof; or
    (4) Raise novel legal or policy issues arising out of legal 
mandates, the President's priorities, or the principles set forth in 
the Executive Order.
    It has been determined by OMB and EPA that this final action to 
amendment to the final rule is not a ``significant regulatory action'' 
under the terms of Executive Order 12866 and is therefore not subject 
to OMB review under the Executive Order.
B. Unfunded Mandates Act

    Section 202 of the Unfunded Mandates Reform Act of 1995 (``Unfunded 
Mandates Act'') (signed into law on March 22, 1995) requires that the 
Agency prepare a budgetary impact statement before promulgating a rule 
that includes a Federal mandate that may result in expenditure by 
State, local, and tribal governments, in aggregate, or by the private 
sector, of $100 million or more in any one year. Section 203 requires 
the Agency to establish a plan for obtaining input from and informing, 
educating, and advising any small governments that may be 

[[Page 40439]]
significantly or uniquely affected by the rule.
    Under section 205 of the Unfunded Mandates Act, the Agency must 
identify and consider a reasonable number of regulatory alternatives 
before promulgating a rule for which a budgetary impact statement must 
be prepared. The Agency must select from those alternatives the least 
costly, most cost-effective, or least burdensome alternative that 
achieves the objectives of the rule, unless the Agency explains why 
this alternative is not selected or the selection of this alternative 
is inconsistent with law.
    Because this final rule is estimated to result in the expenditure 
by State, local, and tribal governments or private sector of less than 
$100 million in any one year, the Agency has not prepared a budgetary 
impact statement or specifically addressed the selection of the least 
costly, most cost-effective, or least burdensome alternative. Because 
small governments will not be significantly or uniquely affected by 
this rule, the Agency is not required to develop a plan with regard to 
small governments. As discussed in this preamble, this rulemaking has 
the net effect of reducing the burden of part 82 subpart F of the 
Stratospheric Protection regulations on regulated entities, including 
State, local, and tribal governments or private sector entities by 
providing greater flexibility.

C. Paperwork Reduction Act

    The information collection requirements in this rule have been 
submitted to by the Office of Management and Budget (OMB) under the 
Paperwork Reduction Act, 44 U.S.C. 3501 et seq and will be assigned 
control number 2060-0256.
    The current collection of information has an estimated reporting 
and recordkeeping burden averaging 564,807 hours per respondent; 
however, this final action will decrease that burden by 108 hours. 
These estimates include time for reviewing instructions, searching 
existing data sources, gathering and maintaining the data needed, and 
completing and reviewing the collection of information.
    Send comments regarding the burden estimate or any other aspect of 
this collection of information, including suggestions for reducing this 
burden to Director, Regulatory Information Division; EPA; 401 M Street 
SW., (Mail Code 2136); Washington, DC 20460; and to the Office of 
Information and Regulatory Affairs, Office of Management and Budget, 
Washington, DC 20503, marked ``Attention: Desk Officer for EPA.''

D. Regulatory Flexibility Act

    The Regulatory Flexibility Act, 5 U.S.C. 601-602, requires that 
Federal agencies examine the impacts of their regulations on small 
entities. Under 5 U.S.C. 604(a), whenever an agency is required to 
publish a general notice of proposed rulemaking, it must prepare and 
make available for public comment an initial regulatory flexibility 
analysis (RFA). Such an analysis is not required if the head of an 
agency certifies that a rule will not have a significant economic 
impact on a substantial number of small entities, pursuant to 5 U.S.C. 
605(b).
    EPA believes that any impact that this amendment will have on the 
regulated community will serve only to provide relief from otherwise 
applicable regulations, and will therefore limit the negative economic 
impact associated with the regulations previously promulgated under 
section 608. An examination of the impacts on small entities was 
discussed in the final rule (58 FR 28660). That final rule assessed the 
impact the rule may have on small entities. A separate regulatory 
impact analysis was developed. That impact analysis accompanied the 
final rule and is contained in Docket A-92-01.
    I certify that this amendment to the refrigerant recycling rule 
will not have any additional negative economic impacts on any small 
entities.

    Dated: July 25, 1995.
Carol M. Browner,
Administrator.

List of Subjects in 40 CFR Part 82

    Environmental protection, Chemical Manufacturers Association, 
Industrial process refrigeration, Leak repair, Mothballing, 
Radiological contamination, Reporting and recordkeeping requirements, 
Retrofit, Verification test.

    Part 82, chapter I, title 40, of the Code of Federal Regulations, 
is amended to read as follows:

PART 82--PROTECTION OF STRATOSPHERIC OZONE

    1. The authority citation for part 82 continues to read as follows:

    Authority: 42 U.S.C. 7414, 7601, 7671-7671q.

    2. Section 82.152 is amended by removing the paragraph designations 
and placing the definitions in alphabetical order; by revising the 
definition for ``Industrial process refrigeration''; and by adding new 
definitions in alphabetical order to read as follows:


Sec. 82.152  Definitions.

* * * * *
    Critical component means, for the purposes of Sec. 82.156(i), a 
component without which industrial process refrigeration equipment will 
not function, will be unsafe in its intended environment, and/or will 
be subject to failures that would cause the industrial process served 
by the refrigeration appliance to be unsafe.
    Custom-built means, for the purposes of Sec. 82.156(i), that the 
equipment or any of its critical components cannot be purchased and/or 
installed without being uniquely designed, fabricated and/or assembled 
to satisfy a specific set of industrial process conditions.
    Follow-up verification test means, for the purposes of 
Sec. 82.156(i), those tests that involve checking the repairs within 30 
days of the appliance's returning to normal operating characteristics 
and conditions. Follow-up verification tests for appliances from which 
the refrigerant charge has been evacuated means a test conducted after 
the appliance or portion of the appliance has resumed operation at 
normal operating characteristics and conditions of temperature and 
pressure, except in cases where sound professional judgment dictates 
that these tests will be more meaningful if performed prior to the 
return to normal operating characteristics and conditions. A follow-up 
verification test with respect to repairs conducted without evacuation 
of the refrigerant charge means a reverification test conducted after 
the initial verification test and usually within 30 days of normal 
operating conditions. Where an appliance is not evacuated, it is only 
necessary to conclude any required changes in pressure, temperature or 
other conditions to return the appliance to normal operating 
characteristics and conditions.
    Full charge means, for the purposes of Sec. 82.156(i), the amount 
of refrigerant required for normal operating characteristics and 
conditions of the appliance as determined by using one of the following 
four methods or a combination of one of the following four methods:
    (1) The equipment manufacturers' determination of the correct full 
charge for the equipment;
    (2) Determining the full charge by appropriate calculations based 
on component sizes, density of refrigerant, volume of piping, and all 
other relevant considerations;
    (3) The use of actual measurements of the amount of refrigerant 
added or evacuated from the appliance; and/or 

[[Page 40440]]

    (4) The use of an established range based on the best available 
data, regarding the normal operating characteristics and conditions for 
the appliance, where the mid-point of the range will serve as the full 
charge, and where records are maintained in accordance with 
Sec. 82.166(q).
* * * * *
    Industrial process refrigeration means, for the purposes of 
Sec. 82.156(i), complex customized appliances used in the chemical, 
pharmaceutical, petrochemical and manufacturing industries. These 
appliances are directly linked to the industrial process. This sector 
also includes industrial ice machines, appliances used directly in the 
generation of electricity, and ice rinks. Where one appliance is used 
for both industrial process refrigeration and other applications, it 
will be considered industrial process refrigeration equipment if 50 
percent or more of its operating capacity is used for industrial 
process refrigeration.
    Industrial process shutdown means, for the purposes of 
Sec. 82.156(i), that an industrial process or facility temporarily 
ceases to operate or manufacture whatever is being produced at that 
facility.
    Initial verification test means, for the purposes of 
Sec. 82.156(i), those leak tests that are conducted as soon as 
practicable after the repair is completed. An initial verification 
test, with regard to the leak repairs that require the evacuation of 
the appliance or portion of the appliance, means a test conducted prior 
to the replacement of the full refrigerant charge and before the 
appliance or portion of the appliance has reached operation at normal 
operating characteristics and conditions of temperature and pressure. 
An initial verification test with regard to repairs conducted without 
the evacuation of the refrigerant charge means a test conducted as soon 
as practicable after the conclusion of the repair work.
* * * * *
    Normal operating characteristics or conditions means, for the 
purposes of Sec. 82.156(i), temperatures, pressures, fluid flows, 
speeds and other characteristics that would normally be expected for a 
given process load and ambient condition during operation. Normal 
operating characteristics and conditions are marked by the absence of 
atypical conditions affecting the operation of the refrigeration 
appliance.
* * * * *
    Suitable replacement refrigerant means, for the purposes of 
Sec. 82.156(i)(7)(i), a refrigerant that is acceptable under section 
612(c) of the Clean Air Act Amendments of 1990 and all regulations 
promulgated under that section, compatible with other materials with 
which it may come into contact, and able to achieve the temperatures 
required for the affected industrial process in a technically feasible 
manner.
* * * * *
    System mothballing means the intentional shutting down of a 
refrigeration appliance undertaken for an extended period of time by 
the owners or operators of that facility, where the refrigerant has 
been evacuated from the appliance or the affected isolated section of 
the appliance, at least to atmospheric pressure.
* * * * *
    3. Section 82.156 is amended by revising paragraphs (a)(2)(i)(A) 
and (a)(2)(i)(B), adding a new paragraph (a)(2)(i)(C), and revising 
paragraph (i) to read as follows:


Sec. 82.156  Required practices.

* * * * *
    (a) * * *
    (2)(i) * * *
    (A) Be evacuated to a pressure no higher than 0 psig before it is 
opened if it is a high- or very high-pressure appliance;
    (B) Be pressurized to 0 psig before it is opened if it is a low-
pressure appliance. Persons pressurizing low-pressure appliances that 
use refrigerants with boiling points at or below 85 degrees Fahrenheit 
at 29.9 inches of mercury (standard atmospheric pressure), (e.g., CFC-
11 and HCFC-123), must not use methods such as nitrogen, that require 
subsequent purging. Persons pressurizing low-pressure appliances that 
use refrigerants with boiling points above 85 degrees Fahrenheit at 
29.9 inches of mercury, e.g., CFC-113, must use heat to raise the 
internal pressure of the appliance as much as possible, but may use 
nitrogen to raise the internal pressure of the appliance from the level 
attainable through use of heat to atmospheric pressure; or
    (C) For the purposes of oil changes, be evacuated or pressurized to 
a pressure no higher than 5 psig, before it is opened; or drain the oil 
into a system receiver to be evacuated or pressurized to a pressure no 
higher than 5 psig.
* * * * *
    (i)(1) Owners or operators of commercial refrigeration equipment 
normally containing more than 50 pounds of refrigerant must have leaks 
repaired in accordance with paragraph (i)(9) of this section, if the 
appliance is leaking at a rate such that the loss of refrigerant will 
exceed 35 percent of the total charge during a 12-month period, except 
as described in paragraphs (i)(6), (i)(8), and (i)(10) of this section 
and paragraphs (i)(1)(i), (i)(1)(ii), and (i)(1)(iii) of this section. 
Repairs must bring the annual leak rate to below 35 percent.
    (i) If the owners or operators of the federally-owned commercial 
refrigerant appliances determine that the leaks cannot be repaired in 
accordance with paragraph (i)(9) of this section and that an extension 
in accordance with the requirements discussed in this paragraph 
(i)(1)(i) of this section apply, they must document all repair efforts, 
and notify EPA of their inability to comply within the 30-day repair 
requirement, and the reason for the inability must be submitted to EPA 
in accordance with Sec. 82.166(n). Such notification must be made 
within 30 days of discovering the leaks. EPA will determine if the 
extension requested in accordance with the requirements discussed in 
paragraph (i)(1)(i) of this section is justified. If the extension is 
not justified, EPA will notify the owner/operator within 30 days of 
receipt of the notification.
    (ii) Owners or operators of federally-owned commercial 
refrigeration equipment may have more than 30 days to repair leaks if 
the refrigeration appliance is located in an area subject to 
radiological contamination or where the shutting down of the appliance 
will directly lead to radiological contamination. Only the additional 
time needed to conduct and complete repairs in a safe working 
environment will be permitted.
    (iii) Owners or operators of federally-owned commercial 
refrigeration equipment requesting or who are granted time extensions 
under this paragraph must comply with paragraphs (i)(3) and (i)(4) of 
this section.
    (2) The owners or operators of industrial process refrigeration 
equipment normally containing more than 50 pounds of refrigerant must 
have leaks repaired if the appliance is leaking at a rate such that the 
loss of refrigerant will exceed 35 percent of the total charge during a 
12-month period in accordance with paragraph (i)(9) of this section, 
except as described in paragraphs (i)(6), (i)(7) and (i)(10) of this 
section, and paragraphs (i)(2)(i) and (i)(2)(ii) of this section. 
Repairs must bring annual leak rates to below 35 percent during a 12-
month period. If the owners or operators of the industrial process 
refrigeration equipment determine that the leak rate cannot be brought 
to below 35 percent during a 12-month period within 30 days (or 120 

[[Page 40441]]
days, where an industrial process shutdown in accordance with paragraph 
(i)(2)(ii) of this section is required,) and in accordance with 
paragraph (i)(9) of this section, and that an extension in accordance 
with the requirements discussed in this paragraph apply, the owners or 
operators of the appliance must document all repair efforts, and notify 
EPA of the reason for the inability in accordance with Sec. 82.166(n) 
within 30 days of making this determination. Owners or operators who 
obtain an extension pursuant to this section or elect to utilize the 
additional time provided in paragraph (i)(2)(i) of this section, must 
conduct all necessary leak repairs, if any, that do not require any 
additional time beyond the initial 30 or 120 days.
    (i) The owners or operators of industrial process refrigeration 
equipment are permitted more than 30 days (or 120 days where an 
industrial process shutdown in accordance with paragraph (i)(2)(ii) of 
this section is required) to repair leaks, if the necessary parts are 
unavailable or if requirements of other applicable federal, state, or 
local regulations make a repair within 30 or 120 days impossible. Only 
the additional time needed to receive delivery of the necessary parts 
or to comply with the pertinent regulations will be permitted.
    (ii) Owners or operators of industrial process refrigeration 
equipment will have a 120-day repair period, rather than a 30-day 
repair period, to repair leaks in instances where an industrial process 
shutdown is needed to repair a leak or leaks from industrial process 
refrigeration equipment.
    (3) The owners or operators of industrial process refrigeration 
equipment who are granted additional time under paragraphs (i)(1), 
(i)(2), and (i)(5) of this section must ensure that the repair efforts 
performed be those that sound professional judgment indicate will be 
sufficient to bring the leak rates below the applicable allowable 
annual rate. When an industrial process shutdown has occurred or when 
repairs have been made while an appliance is mothballed, an initial 
verification test shall be conducted at the conclusion of the repairs 
and a follow-up verification test shall be conducted within 30 days of 
completing the repairs or within 30 days of bringing the appliance back 
on-line, if taken off-line, but no sooner than when the system has 
achieved normal operating characteristics and conditions. When repairs 
have been conducted without an industrial process shutdown or system 
mothballing, an initial verification test shall be conducted at the 
conclusion of the repair efforts and a follow-up verification test 
shall be conducted within 30 days after the initial follow-up 
verification test. In all cases, the follow-up verification test shall 
be conducted at normal operating characteristics and conditions unless 
sound professional judgment indicates that tests performed at normal 
operating characteristics and conditions will produce less reliable 
results, in which case the follow-up verification test shall be 
conducted at or near the normal operating pressure where practicable, 
and at or near the normal operating temperature if practicable, and 
within 30 days of completing the repair efforts.
    (i) If industrial process refrigeration equipment is taken off 
line, it can not be brought back on-line until an initial verification 
test indicates that the repairs undertaken in accordance with 
paragraphs (i)(1) (i), (ii), and (iii), or (i)(2) (i) and (ii), or (5) 
(i), (ii) and (iii) of this section, have been successfully completed, 
demonstrating the leak or leaks are repaired or where the owners or 
operators of the industrial process refrigeration equipment will 
retrofit/replace/retire the industrial process refrigeration equipment 
in accordance with paragraph (i)(6) of this section.
    (ii) If the follow-up verification test indicates that the repairs 
to industrial process refrigeration equipment have not been 
successfully completed, the owner must retrofit or replace the 
equipment in accordance with paragraph (i)(6) of this section within 
one year after the failure to verify that the repairs had been 
successfully completed or such longer time period as may apply in 
accordance with paragraphs (i)(7) (i), (ii) and (iii) or (i)(8)(i) and 
(ii) of this section. The owners and operators of industrial process 
refrigeration equipment are relieved of this requirement if the 
conditions of paragraphs (i)(3)(iv) and/or (i)(3)(v) of this section 
are met.
    (iii) The owner or operator of industrial process refrigeration 
equipment that fails a follow-up verification test must notify EPA 
within 30 days of the failed follow-up verification test in accordance 
with Sec. 82.166(n).
    (iv) The owner or operator is relieved of the obligation to 
retrofit or replace the industrial process refrigeration equipment as 
discussed in paragraph (i)(6) of this section if second repair efforts 
to fix the same leaks that were the subject of the first repair efforts 
are successfully completed within 30 days or 120 days where an 
industrial process shutdown is required, after the initial failed 
follow-up verification test. The second repair efforts are subject to 
the same verification requirements of paragraphs (i)(3), (i)(3) (i) and 
(ii) of this section. The owner or operator is required to notify EPA 
within 30 days of the successful follow-up verification test in 
accordance with Sec. 82.166(n) and the owner or operator is no longer 
subject to the obligation to retrofit or replace the appliance that 
arose as a consequence of the initial failure to verify that the leak 
repair efforts were successful.
    (v) The owner or operator of industrial process refrigeration 
equipment is relieved of the obligation to retrofit or replace the 
equipment in accordance with paragraph (i)(6) of this section if within 
180 days of the initial failed follow-up verification test, the owner 
or operator establishes that the appliance's annual leak rate does not 
exceed the applicable allowable annual leak rate, in accordance with 
paragraph (i)(4) of this section. If the appliance's owner or operator 
establishes that the appliance's annual leak rate does not exceed the 
applicable allowable annual leak rate, the owner or operator is 
required to notify EPA within 30 days of that determination in 
accordance with Sec. 82.166(n) and the owner or operator would no 
longer be subject to the obligation to retrofit or replace the 
equipment that arose as a consequence of the initial failure to verify 
that the leak repair efforts were successful.
    (4) In the case of a failed follow-up verification test subject to 
paragraph (i)(3)(v) of this section, the determination of whether 
industrial process refrigeration equipment has an annual leak rate that 
exceeds the applicable allowable annual leak rate will be made in 
accordance with parameters identified by the owner or operator in its 
notice to EPA regarding the failure of the initial follow-up 
verification test, if those parameters are acceptable to EPA; otherwise 
by parameters selected by EPA. The determination must be based on the 
full charge for the affected industrial process refrigeration 
equipment. The leak rate determination parameters in the owner's or 
operator's notice will be considered acceptable unless EPA notifies the 
owners or operators within 30 days of receipt of the notice. Where EPA 
does not accept the parameters identified by the owner or operator in 
its notice, EPA will not provide additional time beyond the additional 
time permitted in paragraph (i)(3)(v) of this section unless 
specifically stated in the parameters selected by EPA.
    (5) Owners or operators of appliances normally containing more than 
50 pounds of refrigerant and not covered by paragraph (i)(1) or (i)(2) 
of this section must have leaks repaired in 

[[Page 40442]]
accordance with paragraph (i)(9) of this section if the appliance is 
leaking at a rate such that the loss of refrigerant will exceed 15 
percent of the total charge during a 12-month period, except as 
described in paragraphs (i)(6), (i)(8) and (i)(10) of this section and 
paragraphs (i)(5)(i), (i)(5)(ii) and (i)(5)(iii) of this section. 
Repairs must bring the annual leak rate to below 15 percent.
    (i) If the owners or operators of federally-owned comfort-cooling 
appliances determine that the leaks cannot be repaired in accordance 
with paragraph (i)(9) of this section and that an extension in 
accordance with the requirements discussed in paragraph (i)(5) of this 
section apply, they must document all repair efforts, and notify EPA of 
their inability to comply within the 30-day repair requirement, and the 
reason for the inability must be submitted to EPA in accordance with 
Sec. 82.166(n). Such notification must be made within 30 days of 
discovering that leak repair efforts cannot be completed within 30 
days.
    (ii) Owners or operators of federally-owned comfort-cooling 
appliances may have more than 30 days to repair leaks where the 
refrigeration appliance is located in an area subject to radiological 
contamination or where the shutting down of the appliance will directly 
lead to radiological contamination. Only the additional time needed to 
conduct and complete work in a safe environment will be permitted.
    (iii) Owners or operators of federally-owned comfort-cooling 
appliances requesting, or who are granted, time extensions under this 
paragraph must comply with paragraphs (i)(3) and (i)(4) of this 
section.
    (6) Owners or operators are not required to repair the leaks 
defined in paragraphs (i)(1), (i)(2) and (i)(5) of this section if, 
within 30 days of discovering the exceedance of the applicable leak 
rate or within 30 days of a failed follow-up verification test in 
accordance with paragraph (i)(3)(ii) of this section, they develop a 
one-year retrofit or retirement plan for the leaking appliance. This 
plan (or a legible copy) must be kept at the site of the appliance. The 
original must be made available for EPA inspection upon request. The 
plan must be dated and all work under the plan must be completed within 
one year of the plan's date, except as described in paragraphs (i)(7) 
and (i)(8) of this section. Owners are temporarily relieved of this 
obligation if the appliance has undergone system mothballing as defined 
in Sec. 82.152.
    (i) If the owner or operator has made good faith efforts to repair 
leaks in accordance with paragraphs (i)(1), (i)(2), or (i)(5) of this 
section, and has determined to proceed with a plan to retrofit or 
retire the appliance in accordance with paragraph (i)(6) of this 
section, the owner or operator must develop a retrofit or retirement 
plan within 30 days of the determination to retrofit or retire the 
appliance, to be completed within one year of when the owner or 
operator discovered that the leak rate exceeded the applicable 
allowable leak rate, except as provided in paragraphs (i)(7) and (i)(8) 
of this section.
    (ii) In all cases, subject to paragraph (i)(6)(i) of this section, 
the written plan shall be prepared no later than 30 days after the 
owner or operator has determined to proceed with retrofitting or 
retiring the appliance. All reports required under Sec. 82.166(o) shall 
be due at the time specified in the paragraph imposing the specific 
reporting requirement, or no later than 30 days after the decision to 
retrofit or retire the appliance, whichever is later.
    (iii) In cases where the owner or operator of industrial process 
refrigeration equipment has made good faith efforts to retrofit or 
retire industrial process refrigeration equipment prior to August 8, 
1995, and where these efforts are not complete, the owner or operator 
must develop a retrofit or retirement plan that will complete the 
retrofit or retirement of the affected appliance by August 8, 1996. 
This plan (or a legible copy) must be kept at the site of the 
appliance. The original must be made available for EPA inspection upon 
request. Where the conditions of paragraphs (i)(7) and (i)(8) of this 
section apply, and where the length of time necessary to complete the 
work is beyond August 8, 1996, all records must be submitted to EPA in 
accordance with Sec. 82.166(o), as well as maintained on-site.
    (7) The owners or operators of industrial process refrigeration 
equipment will be allowed additional time to complete the retrofit or 
retirement of industrial process refrigeration equipment if the 
conditions described in paragraphs (i)(7)(i) or (i)(7)(ii) of this 
section are met. The owners or operators of industrial process 
refrigeration equipment will be allowed additional time beyond the 
additional time provided in paragraph (i)(7)(ii) of this section if the 
conditions described in paragraph (i)(7)(iii) of this section are met.
    (i) Additional time, to the extent reasonably necessary will be 
allowed for retrofitting or retiring industrial process refrigeration 
equipment due to delays occasioned by the requirements of other 
applicable federal, state, or local laws or regulations, or due to the 
unavailability of a suitable replacement refrigerant with a lower ozone 
depletion potential. If these circumstances apply, the owner or 
operator of the facility must notify EPA within six months after the 
30-day period following the discovery of an exceedance of the 35 
percent leak rate. Records necessary to allow EPA to determine that 
these provisions apply and the length of time necessary to complete the 
work must be submitted to EPA in accordance with Sec. 82.166(o), as 
well as maintained on-site. EPA will notify the owner or operator of 
its determination within 60 days of receipt the submittal.
    (ii) An additional one-year period beyond the initial one-year 
retrofit period is allowed for industrial process refrigeration 
equipment where the following criteria are met:
    (A) The new or the retrofitted industrial process refrigerant 
equipment is custom-built;
    (B) The supplier of the appliance or one or more of its critical 
components has quoted a delivery time of more than 30 weeks from when 
the order is placed;
    (C) The owner or operator notifies EPA within six months of the 
expiration of the 30-day period following the discovery of an 
exceedance of the 35 percent leak rate to identify the owner or 
operator, describe the appliance involved, explain why more than one 
year is needed, and demonstrate that the first two criteria are met in 
accordance with Sec. 82.166(o); and
    (D) The owner or operator maintains records that are adequate to 
allow a determination that the criteria are met.
    (iii) The owners or operators of industrial process refrigeration 
equipment may request additional time to complete retrofitting or 
retiring industrial process refrigeration equipment beyond the 
additional one-year period if needed and where the initial additional 
one year was granted in accordance with paragraph (i)(7)(ii) of this 
section. The request shall be submitted to EPA before the end of the 
ninth month of the first additional year and shall include revisions of 
information required under 82.166(o). Unless EPA objects to this 
request submitted in accordance with Sec. 82.166(o) within 30 days of 
receipt, it shall be deemed approved.
    (8) Owners or operators of federally-owned commercial or comfort-
cooling appliances will be allowed an additional year to complete the 
retrofit or retirement of the appliances if the conditions described in 
paragraph (i)(8)(i) of this section are met, and will be allowed one 
year beyond the 

[[Page 40443]]
additional year if the conditions in paragraph (i)(8)(ii) of this 
section are met.
    (i) Up to one additional one-year period beyond the initial one-
year retrofit period is allowed for such equipment where the following 
criteria are met:
    (A) Due to complications presented by the federal agency 
appropriations and/or procurement process, a delivery time of more than 
30 weeks from the beginning of the official procurement process is 
quoted, or where the appliance is located in an area subject to 
radiological contamination and creating a safe working environment will 
require more than 30 weeks;
    (B) The operator notifies EPA within six months of the expiration 
of the 30-day period following the discovery of an exceedance of the 
applicable allowable annual leak rate to identify the operator, 
describe the appliance involved, explain why more than one year is 
needed, and demonstrate that the first criterion is met in accordance 
with Sec. 82.166(o); and
    (C) The operator maintains records adequate to allow a 
determination that the criteria are met.
    (ii) The owners or operators of federally-owned commercial or 
comfort-cooling appliances may request additional time to complete 
retrofitting, replacement or retiring such appliances beyond the 
additional one-year period if needed and where the initial additional 
one year was granted in accordance with paragraph (i)(8)(i) of this 
section. The request shall be submitted to EPA before the end of the 
ninth month of the first additional year and shall include revisions of 
information earlier submitted as required under Sec. 82.166(o). Unless 
EPA objects to this request submitted in accordance with Sec. 82.166(o) 
within 30 days of receipt, it shall be deemed approved.
    (9) Owners or operators must repair leaks pursuant to paragraphs 
(i)(1), (i)(2) and (i)(5) of this section within 30 days after 
discovery, or within 30 days after when the leaks should have been 
discovered if the owners intentionally shielded themselves from 
information which would have revealed a leak, unless granted additional 
time pursuant to Sec. 82.156(i).
    (10) The amount of time for owners and operators to complete 
repairs, retrofit plans or retrofits/replacements/ retirements under 
paragraphs (i)(1), (i)(2), (i)(5), (i)(6), (i)(7), (i)(8), and (i)(9) 
of this section is temporarily suspended at the time an appliance is 
mothballed as defined in Sec. 82.152. The time for owners and operators 
to complete repairs, retrofit plans, or retrofits/replacements will 
resume on the day the appliance is brought back on-line and is no 
longer considered mothballed. All initial and follow-up verification 
tests must be performed in accordance with paragraphs (i)(3), 
(i)(3)(i), and (i)(3)(ii) of this section.
    (11) In calculating annual leak rates, purged refrigerant that is 
destroyed at a verifiable destruction efficiency of 98 percent or 
greater will not be counted toward the leak rate. Owners or operators 
destroying purged refrigerants must maintain information as set forth 
in Sec. 82.166(p)(1) and submit to EPA, within 60 days after the first 
time such exclusion is used by that facility, information set forth in 
Sec. 82.166(p)(2).
* * * * *
    4. Sec. 82.166 is amended by adding paragraphs (n), (o), (p), and 
(q) to read as follows:


Sec. 82.166  Reporting and recordkeeping requirements.

* * * * *
    (n) The owners or operators of appliances must maintain on-site and 
report to EPA at the address listed in Sec. 82.160 the following 
information, where such reporting and recordkeeping is required and 
within the timelines specified under Sec. 82.156 (i)(1), (i)(2), (i)(3) 
and (i)(5). This information must be relevant to the affected appliance 
and must include: identification of the facility; the leak rate; the 
method used to determine the leak rate and full charge; the date a leak 
rate of greater than the allowable annual leak rate was discovered; the 
location of leaks(s) to the extent determined to date; and any repair 
work that has been completed thus far and the date that work was 
completed.
    (1) The reasons why more than 30 days are needed to complete the 
work and an estimate of when repair work will be completed must be 
submitted with the initial information submitted with the information 
listed in paragraph (n) of this section. If changes from the original 
estimate of when work will be completed result in moving the completion 
date forward from the date submitted to EPA, the reasons for these 
changes must be documented and submitted to EPA within 30 days of 
discovering the need for such a change.
    (2) If the owners or operators intend to establish that the 
appliance's annual leak rate does not exceed the applicable allowable 
annual leak rate in accordance with Sec. 82.156(i)(3)(v), the owner or 
operator is required to submit a plan to fix other outstanding leaks 
for which repairs are planned but not yet completed to achieve a rate 
below the applicable allowable leak rate with the information listed in 
paragraph (n) of this section. Identification of the facility and date 
the original information regarding additional time beyond the initial 
30 days was filed, and notification of the determination that the leak 
rate no longer exceeds the allowable annual leak rate must be included 
within 30 days of making such determination.
    (3) The dates and types of all initial and follow-up verification 
tests performed and the test results for all initial and follow-up 
verification tests must be maintained and submitted to EPA within 30 
days after conducting each test where recordkeeping and reporting is 
required within the timelines specified under Sec. 82.156 (i)(1), 
(i)(2), (i)(3) and (i)(5).
    (o) The owners or operators of appliances must maintain on-site and 
report to EPA at the address specified in Sec. 82.160 the following 
information where such reporting and recordkeeping is required and in 
the timelines specified in Sec. 82.156 (i)(7) and (i)(8), in accordance 
with Sec. 82.156 (i)(7) and (i)(8). This information must be relevant 
to the affected appliance and must include:
    (1) The identification of the industrial process facility;
    (2) The leak rate;
    (3) The method used to determine the leak rate and full charge;
    (4) The date a leak rate of 35 percent or greater was discovered;
    (5) The location of leaks(s) to the extent determined to date;
    (6) Any repair work that has been completed thus far and the date 
that work was completed;
    (7) A plan to complete the retrofit or replacement of the system;
    (8) The reasons why more than one year is necessary to retrofit to 
replace the system;
    (9) The date of notification to EPA; and
    (10) An estimate of when retrofit or replacement work will be 
completed.
    (i) If the estimated date of completion changes from the original 
estimate and results in moving the date of completion forward, 
documentation of the reason for these changes must be submitted within 
30 days of occurring.
    (ii) If the estimated date of completion changes from the original 
estimate and results in moving the date of completion forward, the date 
of notification to EPA regarding this change and the estimate of when 
the work will be completed must be maintained and submitted.
    (p) (1) Owners or operators who wish to exclude purged refrigerants 
that are destroyed from annual leak rate calculations must maintain 
records on-site to support the amount of refrigerant 

[[Page 40444]]
claimed as sent for destruction. Records shall be based on a monitoring 
strategy that provides reliable data to demonstrate that the amount of 
refrigerant claimed to have been destroyed is not greater than the 
amount of refrigerant actually purged and destroyed and that the 98 
percent or greater destruction efficiency is met. Records shall include 
flow rate, quantity or concentration of the refrigerant in the vent 
stream, and periods of purge flow.
    (2) Owners or operators who wish to exclude purged refrigerants 
that are destroyed from annual leak rate calculations must maintain on-
site and make available to EPA upon request the following information 
after the first time the exclusion is utilized by the facility:
    (i) The identification of the facility and a contact person, 
including the address and telephone number;
    (ii) A general description of the refrigerant appliance, focusing 
on aspects of the appliance relevant to the purging of refrigerant and 
subsequent destruction;
    (iii) A description of the methods used to determine the quantity 
of refrigerant sent for destruction and type of records that are being 
kept by the owners or operators where the appliance is located;
    (iv) The frequency of monitoring and data-recording; and
    (v) A description of the control device, and its destruction 
efficiency.
This information must also be included, where applicable, in any 
reporting requirements required for compliance with the leak repair and 
retrofit requirements for industrial process refrigeration equipment, 
as set forth in paragraphs (n) and (o) of this section.
    (q) Owners or operators choosing to determine the full charge as 
defined in Sec. 82.152 of an affected appliance by using an established 
range or using that methodology in combination with other methods for 
determining the full charge defined in the following information:
    (1) The identification of the owner or operator of the appliance;
    (2) The location of the appliance;
    (3) The original range for the full charge of the appliance, its 
midpoint, and how the range was determined;
    (4) Any and all revisions of the full charge range and how they 
were determined; and
    (5) The dates such revisions occurred.
* * * * *
[FR Doc. 95-18999 Filed 8-7-95; 8:45 am]
BILLING CODE 6560-50-P