[Federal Register Volume 60, Number 9 (Friday, January 13, 1995)]
[Rules and Regulations]
[Pages 3318-3322]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-929]




[[Page 3317]]

_______________________________________________________________________

Part IV





Environmental Protection Agency





_______________________________________________________________________



40 CFR Part 82



Protection of Stratospheric Ozone; Final Rule

  Federal Register / Vol. 60, No. 9 / Friday, January 13, 1995 / Rules 
and Regulations    
[[Page 3318]]

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 82

[FRL-5139-7]


Protection of Stratospheric Ozone

AGENCY: Environmental Protection Agency.

ACTION: Notice of acceptability.

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

SUMMARY: This notice expands the list of acceptable substitutes for 
ozone depleting substances (ODSs) under the U.S. Environmental 
Protection Agency's (EPA) Significant New Alternatives Policy (SNAP) 
program. SNAP implements section 612 of the amended Clean Air Act of 
1990 which requires EPA to evaluate substitutes for the ODSs, and 
regulate the use of substitutes where other alternatives exist that 
reduce overall risk to human health and the environment. Through these 
evaluations, SNAP generates lists of acceptable and unacceptable 
substitutes for each of the major industrial use sectors.
    On March 18, 1994, EPA promulgated its plan for administering the 
SNAP program, and issued decisions on the acceptability and 
unacceptability of a number of substitutes (59 FR 13044). In today's 
Notice, EPA issues decisions on the acceptability of substitutes not 
previously reviewed by the Agency. The intended effect of this action 
is to expedite movement away from ozone depleting compounds. To arrive 
at determinations on the acceptability of substitutes, the Agency 
completed a cross-media sector end-use screening assessment of risks to 
human health and the environment.

EFFECTIVE DATE: January 13, 1995.

ADDRESSES: Information relevant to this notice is contained in Air 
Docket A-91-42, Central Docket Section, South Conference Room 4, U.S. 
Environmental Agency, 401 M Street, SW., Washington, DC 20460. 
Telephone: (202) 260-7548. The docket may be inspected between 8 a.m. 
and 5:30 p.m. weekdays. As provided in 40 CFR part 2, a reasonable fee 
may be charged for photocopying.

FOR FURTHER INFORMATION CONTACT: Jeffrey Levy at (202) 233-9727 or fax 
(202) 233-9577, U.S. EPA, Stratospheric Protection Division, 401 M 
Street, SW., Mail Code 6205J, Washington, DC 20460.

SUPPLEMENTARY INFORMATION:

I. Overview of This Action

    This action is divided into six sections, including this overview:

I. Overview of This Notice
II. Section 612 Program
    A. Statutory Requirements
    B. Regulatory History
III. Listing of Acceptable Substitutes
IV. Listing of Substitutes Pending Review
V. Additional Information
Appendix A Summary of Acceptable and Pending Decisions

II. Section 612 Program

A. Statutory Requirements

    Section 612 of the Clean Air Act authorizes EPA to develop a 
program for evaluating alternatives to ozone-depleting substances. EPA 
is referring to this program as the Significant New Alternatives Policy 
(SNAP) program. The major provisions of section 612 are:
    Rulemaking--Section 612(c) requires EPA to promulgate rules making 
it unlawful to replace any class I (chlorofluorocarbon, halon, carbon 
tetrachloride, methyl chloroform, methyl bromide, and 
hydrobromofluorocarbon) or class II (hydrochlorofluorocarbon) substance 
with any substitute that the Administrator determines may present 
adverse effects to human health or the environment where the 
Administrator has identified an alternative that (1) reduces the 
overall risk to human health and the environment, and (2) is currently 
or potentially available.
    Listing of Unacceptable/Acceptable Substitutes--Section 612(c) also 
requires EPA to publish a list of the substitutes unacceptable for 
specific uses. EPA must publish a corresponding list of acceptable 
alternatives for specific uses.
    Petition Process--Section 612(d) grants the right to any person to 
petition EPA to add a substance to or delete a substance from the lists 
published in accordance with section 612(c). The Agency has 90 days to 
grant or deny a petition. Where the Agency grants the petition, EPA 
must publish the revised lists within an additional 6 months.
    90-day Notification--Section 612(e) requires EPA to require any 
person who produces a chemical substitute for a class I substance to 
notify the Agency not less than 90 days before new or existing 
chemicals are introduced into interstate commerce for significant new 
uses as substitutes for a class I substance. The producer must also 
provide the Agency with the producer's unpublished health and safety 
studies on such substitutes.
    Outreach--Section 612(b)(1) states that the Administrator shall 
seek to maximize the use of federal research facilities and resources 
to assist users of class I and II substances in identifying and 
developing alternatives to the use of such substances in key commercial 
applications.
    Clearinghouse--Section 612(b)(4) requires the Agency to set up a 
public clearinghouse of alternative chemicals, product substitutes, and 
alternative manufacturing processes that are available for products and 
manufacturing processes which use class I and II substances.

B. Regulatory History

    On March 18, 1994, EPA published the Final Rulemaking (FRM) (59 FR 
13044) which described the process for administering the SNAP program 
and issued EPA's first acceptability lists for substitutes in the major 
industrial use sectors. These sectors include: refrigeration and air 
conditioning; foam blowing; solvent cleaning; fire suppression and 
explosion protection; sterilants; aerosols; adhesives, coatings and 
inks; and tobacco expansion. These sectors compose the principal 
industrial sectors that historically consumed the largest volumes of 
ozone-depleting compounds.
    As described in the final rule for the SNAP program (59 FR 13044), 
EPA does not believe that rulemaking procedures are required to list 
alternatives as acceptable with no limitations. Such listings do not 
impose any sanction, nor do they remove any prior license to use a 
substance. Consequently, EPA is adding substances to the list of 
acceptable alternatives without first requesting comment on new 
listings.
    EPA does, however, believe that notice-and-comment rulemaking is 
required to place any substance on the list of prohibited substitutes, 
to list a substance as acceptable only under certain conditions, to 
list substances as acceptable only for certain uses, or to remove a 
substance from either the list of prohibited or acceptable substitutes. 
Updates to these lists are published as separate notices of rulemaking 
in the Federal Register.
    The Agency defines a ``substitute'' as any chemical, product 
substitute, or alternative manufacturing process, whether existing or 
new, that could replace a class I or class II substance. Anyone who 
produces a substitute must provide the Agency with health and safety 
studies on the substitute at least 90 days before introducing it into 
interstate commerce for significant new use as an alternative. This 
requirement applies to substitute manufacturers, but [[Page 3319]] may 
include importers, formulators or end-users, when they are responsible 
for introducing a substitute into commerce.
    Since the SNAP FRM, EPA has published a Notice listing acceptable 
alternatives on August 26, 1994 and a Notice of Proposed Rulemaking 
restricting the use of certain substitutes on September 26, 1994.

III. Listing of Acceptable Substitutes

    This section presents EPA's most recent acceptable listing 
decisions for class I substitutes in the following industrial sectors: 
refrigerants and air conditioning, foam blowing, solvent cleaning, fire 
suppression and explosion protection; sterilants; aerosols; adhesives, 
coatings and inks. These decisions represent substitutes not previously 
reviewed in the final rulemaking for SNAP (59 FR 13044; March 18, 1994) 
and, consequently, add to the lists of acceptable substitutes under 
SNAP. For copies of the full list, contact the EPA Stratospheric 
Protection Hotline at the number listed in Section V of this Notice.
    Parts A through D below present a detailed discussion of the 
substitute listing determinations by major use sector. Tables 
summarizing listing decisions in this Notice are in Appendix A. The 
comments contained in Appendix A provide additional information on a 
substitute, but like the listings themselves, are not regulatory in 
nature. Thus, adherence to recommendations in the comments are not 
mandatory for use of a substitute. In addition, the comments should not 
be considered comprehensive with respect to other legal obligations 
pertaining to the use of the substitute. However, EPA encourages users 
of acceptable substitutes to apply all comments to their use of these 
substitutes. In many instances, the comments simply allude to sound 
operating practices that have already been identified in existing 
industry and/or building-code standards. Thus, many of the comments, if 
adopted, would not require significant changes in existing operating 
practices for the affected industry.

A. Refrigeration and Air Conditioning

    Please refer to the final SNAP rule for detailed information 
pertaining to the designation of end-uses, additional requirements 
imposed under sections 608 and 609, and other information related to 
the use of alternative refrigerants.
1. R-401A and R-401B
    R-401A and R-401B, which consist of HCFC-22, HFC-152a, and HCFC-
124, are acceptable as substitutes for CFC-11, CFC-12, R-500, and R-502 
in the following end-uses:
     New and Retrofitted Reciprocating Chillers.
     New Industrial Process Refrigeration.
     New Cold Storage Warehouses.
     New Refrigerated Transport.
     New Retail Food Refrigeration.
     New Commercial Ice Machines.
     New Vending Machines.
     New Water Coolers.
     New Household Refrigerators.
     New Household Freezers.
     New Residential Dehumidifiers.
    Please note that different temperature regimes may affect the 
applicability of these substitutes within these end-uses.
    Two of the constituents in these blends are HCFCs and thus 
contribute to ozone depletion; HCFC production will be phased out 
according to the accelerated schedule. While the GWP of HCFC-22 is 
somewhat high, refrigerant leak regulations should reduce its 
contribution to global warming. The GWPs of the other components are 
low. Although these blends do contain one flammable constituent, HFC-
152a, the blends themselves are not flammable. In addition, each blend 
is a near azeotrope, and it does not fractionate in normal operation. 
Finally, leak testing of each blend demonstrated that while the vapor 
and liquid compositions changed, neither phase became flammable. 
Testing of these blends with centrifugal compressors is inadequate, and 
therefore such use is not recommended by the manufacturer. Further 
testing may resolve this uncertainty.
2. CO2
    CO2 is acceptable as follows:
     As a substitute for CFC-13, R-13B1, and R-503 in Very Low 
Temperature Refrigeration, Retrofit and New.
     As a substitute for CFC-13, R-13B1, and R-503 in 
Industrial Process Refrigeration, Retrofit and New.
     As a substitute for CFC-11, CFC-12, CFC-113, CFC-114, and 
CFC-115 in Non-mechanical Heat Transfer, Retrofit and New.
    CO2 was historically used in refrigeration systems. It is a 
well-known, nontoxic, nonflammable gas. Its GWP is defined as 1, and 
all other GWPs are indexed to it. Since it is readily available as a 
waste gas, no additional chemical will need to be produced. Thus, the 
use of CO2 as a refrigerant will not contribute to global warming. 
CO2's usefulness is limited to temperatures above -70 deg.F.
3. HCFC-22
    HCFC-22 is acceptable as a substitute for R-400(60/40) and CFC-114 
in New Industrial Process Air Conditioning.
    EPA recommends that HCFC-22 only be used where ambient temperatures 
are lower than 115 deg.F because of very high system pressures.
    HCFC-22 has been used in a variety of air conditioning and 
refrigeration applications for many years. HCFC-22 contributes to ozone 
depletion and is considered a transitional alternative. HCFC-22 
production will be phased out according to the accelerated phaseout 
schedule. HCFC-22's GWP and atmospheric lifetime are higher than other 
HCFCs. HCFC-22 is not flammable and it is compatible with existing oils 
used in most refrigeration and air conditioning equipment.
4. HFC-134a
    HFC-134a is acceptable as a substitute for R-400(60/40) and CFC-114 
in New Industrial Process Air Conditioning.
    EPA recommends that HFC-134a only be used where ambient 
temperatures are lower than 125 deg.F because of very high system 
pressures. HFC-134a does not contribute to ozone depletion. HFC-134a's 
GWP and atmospheric lifetime are close to those of other alternatives 
which are acceptable in this end-use. While HFC-134a is compatible with 
most existing refrigeration and air conditioning equipment parts, it is 
not compatible with the mineral oils currently used in such systems. An 
appropriate ester-based, polyalkylene glycol-based, or other type of 
lubricant should be used.
5. R-401A
    R-401A and R-401B, which consist of HCFC-22, HFC-152a, and HCFC-
124, is acceptable as a substitute for R-400(60/40) and CFC-114 in 
Retrofitted Industrial Process Air Conditioning.
    See the discussion on R-401A for more information about this blend.
6. R-404A
    R-404A, which consists of HFC-125, HFC-143a, and HFC-134a, is 
acceptable as a substitute for CFC-12 in new household refrigerators.
    None of this blend's constituents contains chlorine, and thus this 
blend poses no threat to stratospheric ozone. However, HFC-125 and HFC-
143a have very high GWPs, and the GWP of HFC-134a is somewhat high. EPA 
strongly encourages recycling and reclamation of this blend in order to 
reduce its direct global warming impact. Although HFC-143a is 
flammable, the blend is not. Leak testing has demonstrated that its 
composition never becomes flammable. [[Page 3320]] 
7. R-507
    R-507, which consists of HFC-125 and HFC-143a, is acceptable as a 
substitute for CFC-12 in new household refrigerators.
    None of this blend's constituents contains chlorine, and thus this 
blend poses no threat to stratospheric ozone. However, HFC-125 and HFC-
143a have very high GWPs. EPA strongly encourages recycling and 
reclamation of this blend in order to reduce its direct global warming 
impact. Although HFC-143a is flammable, the blend is not. Leak testing 
has demonstrated that its composition never becomes flammable.
8. Hydrocarbon Blend B
    Hydrocarbon Blend B is acceptable as a substitute for CFC-12 in 
retrofitted and new industrial process refrigeration systems.
    This blend contains several hydrocarbons. It does not contribute to 
ozone depletion, nor does it contribute significantly to global 
warming. This blend contains flammable refrigerants, and EPA recommends 
but does not require that it only be used at industrial facilities 
which already manufacture or use hydrocarbons in the process stream. 
Such facilities are designed to comply with the safety standards 
required for managing flammable chemicals. Note that EPA only finds 
this product acceptable in this specific end-use because other 
flammable refrigerants are acceptable and sufficient occupational 
safety rules exist to protect workers.

B. Foams

1. Rigid Polyurethane Appliance
    a.Vacuum Panels--Vacuum panels are acceptable substitutes for CFC-
11 blown rigid polyurethane appliance foam. The Agency has reviewed 
data on existing and proposed models of vacuum panels and believes that 
this alternative technology offers lower risk than continued use of 
CFC-11 blown polyurethane foam.

IV. Substitutes Pending Review

    The Agency describes submissions as pending if data are incomplete 
or for which the 90-day review period is underway and EPA has not yet 
reached a final decision. For submissions that are incomplete, the 
Agency will contact the submitter to determine a schedule for providing 
the missing information if the Agency needs to extend the 90-day review 
period. EPA will use its authority under section 114 of the Clean Air 
Act to gather this information, if necessary. Any delay of the review 
period does not affect a manufacturer's ability to sell a product 90 
days after notification of the Agency. Substitutes currently pending 
completion of review are listed in Appendix A.

V. Additional Information

    Contact the Stratospheric Protection Hotline at 1-800-296-1996, 
Monday-Friday, between the hours of 10:00 a.m. and 4:00 p.m. (Eastern 
Standard Time).
    For more information on the Agency's process for administering the 
SNAP program or criteria for evaluation of substitutes, refer to the 
SNAP final rulemaking published in the Federal Register on March 18, 
1994 (59 FR 13044). Federal Register notices can be ordered from the 
Government Printing Office Order Desk (202) 783-3238; the citation is 
the date of publication. This Notice can also be retrieved 
electronically from EPA's Technology Transfer Network (TTN), Clean Air 
Act Amendment Bulletin Board. If you have a 1200 or 2400 bps modem, 
dial (919) 541-5742. If you have a 9600 bps modem, dial (919) 541-1447. 
For assistance in accessing this service, call (919) 541-5384.

List of Subjects in 40 CFR Part 82

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Reporting and recordkeeping requirements.

    Dated: December 28, 1994.
Mary D. Nichols,
Assistant Administrator.
    Note: The following appendix will not appear in the Code of 
Federal Regulations:

                                                Appendix A.--Summary of Acceptable and Pending Decisions                                                
                                                           Refrigerants Acceptable Substitutes                                                          
--------------------------------------------------------------------------------------------------------------------------------------------------------
                End-use                            Substitute                 Decision                                 Comments                         
--------------------------------------------------------------------------------------------------------------------------------------------------------
CFC-12 Reciprocating Chillers (Retrofit  R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 & New Equipment/NIKs).                                                                       regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-11, CFC-12, R-502 Industrial         Hydrocarbon Blend B...........  Acceptable........  This refrigerant is highly flammable.                      
 Process Refrigeration (Retrofit).                                                                                                                      
CFC-11, CFC-12, R-502 Industrial         R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 Process Refrigeration (New Equipment/                                                        regulations covering HCFCs.                               
 NIKs).                                                                                                                                                 
                                         R-401B........................  Acceptable........                                                             
                                         Hydrocarbon Blend B...........  Acceptable........  This refrigerant is highly flammable.                      
CFC-13, R-13B1, R-503 Industrial         CO2...........................  Acceptable........                                                             
 Process Refrigeration (Retrofit and                                                                                                                    
 New Equipment/NIKs).                                                                                                                                   
CFC-12, R-502 Cold Storage Warehouses    R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 (New Equipment/NIKs).                                                                        regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12, R-500, R-502 Refrigerated        R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 Transport (New Equipment/NIKs).                                                              regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
[[Page 3321]]                                                                                                                                           
                                                                                                                                                        
CFC-12, R-502 Retail Food Refrigeration  R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 (New Equipment/NIKs).                                                                        regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12, R-502 Commercial Ice Machines    R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 (New Equipment/NIKs).                                                                        regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12 Vending Machines (New Equipment/  R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 NIKs).                                                                                       regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12 Water Coolers (New Equipment/     R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 NIKs).                                                                                       regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12 Household Refrigerators (New      R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 Equipment/NIKs).                                                                             regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12, R-502 Household Freezers (New    R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 Equipment/NIKs).                                                                             regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-12, R-500 Residential Dehumidifiers  R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 (New Equipment/NIKs).                                                                        regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-13, R-13B1, and R-503 Very Low       CO2...........................  Acceptable........                                                             
 Temperature Refrigeration (Retrofit                                                                                                                    
 and New Equipment/NIKs).                                                                                                                               
CFC-11, CFC-12, CFC-113, CFC-114, CFC-   CO2...........................  Acceptable........                                                             
 115 Non-Mechanical Heat Transfer,                                                                                                                      
 Retrofit and New.                                                                                                                                      
CFC-114 Industrial Process Air           R-401A........................  Acceptable........  This substitute is subject to containment and recovery     
 Conditioning (Retrofit).                                                                     regulations covering HCFCs.                               
                                         R-401B........................  Acceptable........  This substitute is subject to containment and recovery     
                                                                                              regulations covering HCFCs.                               
CFC-114 Industrial Process Air           HCFC-22.......................  Acceptable........  HCFC-22 should only be used where ambient temperatures are 
 Conditioning (New Equipment/NIKs).                                                           below 115 deg.F because of excessive compressor pressures.
                                                                                              This substitute is subject to containment and recovery    
                                                                                              regulations covering HCFCs.                               
                                         HFC-134a......................  Acceptable........  HFC-134a should only be used where ambient temperatures are
                                                                                              below 125 deg.F because of excessive compressor pressures.
                                                                                              EPA strongly encourages the containment and reclamation of
                                                                                              this refrigerant.                                         
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                         Refrigerants Pending Decisions                                         
----------------------------------------------------------------------------------------------------------------
          Application                    Substitute                                Comments                     
----------------------------------------------------------------------------------------------------------------
CFC-12 Motor Vehicle Air        HCFC Blend Delta............  EPA has requested additional data.                
 Conditioning.                                                                                                  
----------------------------------------------------------------------------------------------------------------


                                       Foams Sector Acceptable Substitutes                                      
----------------------------------------------------------------------------------------------------------------
        End-use                Substitute              Decision                        Comments                 
----------------------------------------------------------------------------------------------------------------
CFC-11 Polyurethane     Vacuum Panels...........  Acceptable........                                            
 Appliance.                                                                                                     
----------------------------------------------------------------------------------------------------------------


                                                             Foams Sector Pending Decisions                                                             
--------------------------------------------------------------------------------------------------------------------------------------------------------
                  End-use                                       Substitute                                              Comments                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
HCFC-141b, HCFC-22 Rigid polyurethane and   Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 polyisocyanurate laminated boardstock.                                                                                                                 
[[Page 3322]]                                                                                                                                           
                                                                                                                                                        
HCFC-141b, HCFC-22 Polyurethane, rigid      Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 appliance.                                                                                                                                             
HCFC-141b, HCFC-22 Polyurethane, rigid      Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 commercial, refrigeration, spray and                                                                                                                   
 sandwich panels.                                                                                                                                       
                                            HFC-134a..........................................  Agency has not completed review of data.                
HCFC-141b, HCFC-22, HCFC-142b               Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 Polyurethane, rigid slabstock and other.                                                                                                               
HCFC-22, HCFC-142b Polystyrene, extruded    Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 boardstock and billet.                                                                                                                                 
HCFC-141b, HCFC-22, HCFC-142b Phenolic,     Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
 insulation boardstock and bunstock.                                                                                                                    
HCFC-22 Polyurethane, integral skin.......  Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
                                            HFC-134a..........................................  Agency has not completed review of data.                
HCFC-22, HCFC-142b Polyolefin.............  Saturated light hydrocarbons C3-C6................  Agency has not completed review of data.                
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                                                Solvent Cleaning Pending                                                                
--------------------------------------------------------------------------------------------------------------------------------------------------------
                End-use                                           Substitute                                                Comments                    
--------------------------------------------------------------------------------------------------------------------------------------------------------
Metals cleaning w/CFC-113, MCF and      HCFC-225......................................................                                                  
 HCFC-141b.                                                                                                                                             
Metals cleaning w/CFC-113, MCF and      HCFC-122......................................................                                                  
 HCFC-141b.                                                                                                                                             
Electronics cleaning w/ CFC-113, MCF    HCFC-122......................................................                                                  
 and HCFC-141b.                                                                                                                                         
Electronics cleaning w/ HCFC-141b.....  Perfluorocarbons (C5F12, C6F12, C6F14, C7F16, C8F18, C5F11NO,                                                   
                                         C6F13NO, C7F15NO, and C8F16).                                                                                  
Precision cleaning w/CFC-113, MCF and   HCFC-122......................................................                                                  
 HCFC-141b.                                                                                                                                             
Precision cleaning w/HCFC-141b........  Perfluorocarbons (C5F12, C6F12, C6F14, C7F16, C8F18, C5F11NO,                                                   
                                         C6F13NO, C7F15NO, and C8F16).                                                                                  
--------------------------------------------------------------------------------------------------------------------------------------------------------


                           Fire Suppression and Explosion Protection Pending Decisions                          
----------------------------------------------------------------------------------------------------------------
         End-use                         Substitute                                   Comments                  
----------------------------------------------------------------------------------------------------------------
Halon 1211..............  CF3I....................................  Pending publication of the upcoming NPRM and
                                                                     subsequent FRM.                            
Streaming Agents........  HFC-227ea...............................  Complete SNAP submission and personal       
                                                                     monitoring data required.                  
Halon 1301..............  [HFC Blend] A...........................  Agency analysis of this agent is not yet    
                                                                     complete.                                  
Total Flooding Agents...  [Inert Gas Blend] B.....................  Pending publication of upcoming NPRM and    
                                                                     subsequent FRM.                            
                          [Inert Gas Blend] C.....................  Pending publication of upcoming NPRM and    
                                                                     subsequent FRM.                            
                          [Powdered Aerosol] A....................  For use in occupied areas, pending medical  
                                                                     assessment by peer review panel.           
                          [Water Mist System] A...................  Pending receipt of medical assessment by    
                                                                     peer review panel.                         
                          [Water Mist System] B...................  Pending receipt of medical assessment by    
                                                                     peer review panel.                         
----------------------------------------------------------------------------------------------------------------


                                          Sterilants Pending Decisions                                          
----------------------------------------------------------------------------------------------------------------
             End-use                     Substitute                               Comments                      
----------------------------------------------------------------------------------------------------------------
12/88 Blend of EtO/CFC-12.......  HFC-125                   Pending FIFRA registration and completion of Agency 
                                                             review.                                            
Sterilant.......................  HFC-227ea                 Pending FIFRA registration and receipt of complete  
                                                             SNAP submission.                                   
----------------------------------------------------------------------------------------------------------------


                                                Aerosols Pending                                                
----------------------------------------------------------------------------------------------------------------
         End-use                         Substitute                                   Comments                  
----------------------------------------------------------------------------------------------------------------
CFC-11, CFC-113, MCF,     Volatile methyl siloxanes...............  EPA investigating feasibility of meeting    
 HCFC-141b as aerosol                                                exposure standards for this class of       
 solvents.                                                           chemicals when used in occupational        
                                                                     settings.                                  
----------------------------------------------------------------------------------------------------------------


                                 Adhesives, Coatings and Inks Pending Decisions                                 
----------------------------------------------------------------------------------------------------------------
         End-use                         Substitute                                   Comments                  
----------------------------------------------------------------------------------------------------------------
Metals cleaning w/CFC-    Monochloro-toluene/benzo-trifluorides...  Agency has not completed review of data.    
 113 MCF.                                                            Evaluation of exposure and toxicity data   
                                                                     still ongoing.                             
----------------------------------------------------------------------------------------------------------------

[FR Doc. 95-929 Filed 1-12-95; 8:45 am]
BILLING CODE 6560-50-P