[Federal Register Volume 65, Number 246 (Thursday, December 21, 2000)]
[Rules and Regulations]
[Pages 80329-80333]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-32239]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[WY-001-0006a; FRL-6886-8]


Clean Air Act Approval and Promulgation of State Implementation 
Plan; Wyoming; Revisions to Air Pollution Regulations

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: The EPA partially approves and partially disapproves revisions 
to the State Implementation Plan (SIP) submitted by the Governor of 
Wyoming on May 21, 1999. The submittal incorporates revisions to the 
following sections of the Wyoming Air Quality Standards and Regulations 
(WAQSR): Section 2 Definitions, Section 4 Sulfur oxides, Section 5 
Sulfuric acid mist, Section 8 Ozone, Section 9 Volatile organic 
compounds, Section 10 Nitrogen oxides, Section 14 Control of 
particulate emissions, and Section 21 Permit requirements for 
construction, modification and operation. We partially approve these 
SIP revisions because they are consistent with Federal requirements. We 
are also partially

[[Page 80330]]

disapproving the provisions of the State submittal that allow the 
Administrator of the Wyoming Air Quality Division (WAQD) to approve 
alternative test methods to those required in the SIP, (in sections 2, 
4, 5, 10, and 14 of the WAQSR) because such provisions are inconsistent 
with section 110(i) of the Clean Air Act (Act) and the requirement that 
SIP provisions can only be modified through revisions to the SIP and 
must be approved by EPA. We are taking this action under section 110 of 
the Act.

DATES: This rule is effective on February 20, 2001 without further 
notice, unless we receive adverse comment by January 22, 2001. If we 
receive adverse comments, we will publish a timely withdrawal of the 
direct final rule in the Federal Register and inform the public that 
the rule will not take effect.

ADDRESSES: You should mail your written comments to Richard R. Long, 
Director, Air and Radiation Program, Mailcode 8P-AR, Environmental 
Protection Agency, Region VIII, 999 18th Street, Suite 300, Denver, 
Colorado, 80202. Copies of the documents relevant to this action are 
available for public inspection during normal business hours at the Air 
and Radiation Program, Environmental Protection Agency, Region VIII, 
999 18th Street, Suite 300, Denver, Colorado, 80202-2466. Copies of the 
Incorporation by Reference material are available at the Air and 
Radiation Docket (6102), Environmental Protection Agency, 401 M Street, 
SW, Washington, DC 20460. Copies of the State documents relevant to 
this action are available for public inspection at the Air Quality 
Division, Department of Environmental Quality, 122 West 25th Street, 
Cheyenne, Wyoming, 82002.

FOR FURTHER INFORMATION CONTACT: Kerri Fiedler, EPA Region VIII, (303) 
312-6493.

SUPPLEMENTARY INFORMATION: Throughout this document, wherever ``we'', 
``our'', or ``us'' is used, we mean EPA.

Table of Contents

I. Summary of EPA's Actions
II. Evaluation of the State's Submittal
    A. Section 2 Definitions
    B. Section 4 Sulfur oxides
    C. Section 5 Sulfuric acid mist
    D. Section 8 Ozone
    E. Section 9 Volatile organic compounds
    F. Section 10 Nitrogen oxides
    G. Section 14 Control of particulate emissions
    H. Section 21 Permit requirements for construction, 
modification, and operation
III. Final Action
IV. Administrative Requirements
    A. Executive Order 12866
    B. Executive Order 13045
    C. Executive Order 13084
    D. Executive Order 13132
    E. Regulatory Flexibility
    F. Unfunded Mandates
    G. Submission to Congress and the Comptroller General
    H. National Technology Transfer and Advancement Act
    I. Petitions for Judicial Review

I. Summary of EPA's Actions

    We are partially approving and partially disapproving revisions to 
the SIP submitted by the Governor of Wyoming on May 21, 1999. 
Specifically, we are partially approving and partially disapproving the 
following sections of the WAQSR: Section 2 Definitions, Section 4 
Sulfur oxides, Section 5 Sulfuric acid mist, Section 8 Ozone, Section 9 
Volatile organic compounds, Section 10 Nitrogen oxides, Section 14 
Control of particulate emissions, and Section 21 Permit requirements 
for construction, modification and operation. Revisions to sections 2, 
4, 5, and 14 represent minor changes to correct cross references. 
Revisions to the ozone section were designed to comply with revisions 
to the national 8-hour primary and secondary ambient air quality 
standards for ozone. Section 9 was revised to remove outdated 
regulations and clarify requirements for flaring of waste gas. Section 
10 was changed to clarify references to combustion equipment. 
Permitting section 21 was revised to reference additional permitting 
requirements in the hazardous air pollutant regulations.
    We are publishing this rule without prior proposal because we view 
this as a noncontroversial amendment and anticipate no adverse 
comments. However, in the ``Proposed Rules'' section of today's Federal 
Register publication, we are publishing a separate document that will 
serve as the proposal to approve the SIP revision if adverse comments 
are filed. This rule will be effective February 20, 2001 without 
further notice unless the Agency receives adverse comments by January 
22, 2001.
    If we receive such comments, then we will publish a timely 
withdrawal of the direct final rule informing the public that the rule 
will not take effect. All public comments received will then be 
addressed in a subsequent final rule based on the proposed rule. We 
will not institute a second comment period on this rule. Any parties 
interested in commenting on this rule should do so at this time. If no 
such comments are received, the public is advised that this rule will 
be effective on February 20, 2001, and no further action will be taken 
on the proposed rule.

II. Evaluation of the State's Submittal

    Section 110(k) of the Act addresses our actions on submissions of 
SIP revisions. The Act also requires States to observe certain 
procedures in developing SIP revisions. Section 110(a)(2) of the Act 
requires that each SIP revision be adopted after reasonable notice and 
public hearing. We have evaluated the State's submission and determined 
that the necessary procedures were followed. We also must determine 
whether a submittal is complete and therefore warrants further review 
and action (see section 110(k)(1) of the Act). Our completeness 
criteria for SIP submittals can be found in 40 CFR part 51 appendix V. 
We attempt to determine completeness within 60 days of receiving a 
submissions. However, the law considers a submittal complete if we do 
not determine completeness within six months after we receive it. This 
submission became complete by operation of law on November 21, 1999 in 
accordance with section 110(k)(1)(B) of the Act.

A. Section 2 Definitions

    The State revised the definition of ``particulate matter 
emissions'' in section 2(a)(xxx)(B) of the WAQSR. This revision is a 
minor change to correct applicable reference methods. This revision is 
partially approved and partially disapproved, however, because the 
provision allows the use of an equivalent or alternative method to be 
approved by the Administrator of the WAQD. In an August 19, 1998 letter 
to the WAQD, we raised concerns about provisions in the WAQSR where the 
WAQD has the discretion to approve the use of alternative or equivalent 
test methods in place of those required in the SIP. Such discretionary 
authority for the State to change test methods that are included in the 
SIP, without obtaining prior EPA approval is not consistent with 
section 110 of the Act. These ``director's discretion'' provisions 
essentially allow for a variance from SIP requirements, which is not 
allowed under section 110(i) of the Act. In our August 19, 1998 letter, 
we identified the sections in the WAQSR which contain these director's 
discretion provisions, and informed the State that the provisions 
needed to be revised to require EPA approval of any alternative or 
equivalent test methods. In a September 9, 1998 letter responding to 
our comments, the WAQD committed to address our concerns through 
revisions to these rules in the near future. In fact, the State 
recently revised section

[[Page 80331]]

2(a)(xxx)(B) of the WAQSR to read, ``* * * or an equivalent or 
alternative method approved by the EPA Administrator.'' We anticipate 
that the revision will be submitted as a SIP revision in the near 
future. However, until these provisions are revised, we believe it is 
necessary to disapprove the various ``director's discretion'' 
provisions, to ensure that any alternatives to the test methods 
required in the SIP are approved by EPA.

B. Section 4 Sulfur Oxides

    The State made a minor revision to section 4(h) of the WAQSR to 
change a reference for the method to measure sulfur oxide emissions. As 
discussed above, this revision also is partially approved and partially 
disapproved. This provision allows the Administrator of the WAQD to 
approve the use of an equivalent test method. For the reasons discussed 
in section II.B above, we are disapproving the director's discretion 
provision in section 4(h) of the WAQSR, because it is inconsistent with 
section 110(i) of the Act.

C. Section 5 Sulfuric Acid Mist

    The State made a minor revision to section 5 of the WAQSR to change 
the reference for the method to measure sulfuric acid mist. This 
revision is also partially approved and partially disapproved. This 
provision allows the Administrator of the WAQD to approve the use of an 
equivalent method. This provision for director's discretion has since 
been revised to require EPA approval of alternative test methods, and 
the new revision became effective at the State level on October 29, 
1999. However, this revision has not yet been submitted to us for 
approval into the SIP. For the reasons discussed in section II.B above, 
we are partially disapproving the director's discretion provision in 
section 5, because it is inconsistent with section 110(i) of the Act.

D. Section 8 Ozone

    The State revised section 8 of the WAQSR by adding the 8-hour 
primary and secondary ozone National Ambient Air Quality Standards 
(NAAQS). We are approving this revision as it is consistent with the 
Federal 8-hour ozone NAAQS, as promulgated in the Federal Register on 
July 18, 1997 (see 62 FR 38856), and also addresses the requirements of 
40 CFR part 50 (Appendices D and I) and 40 CFR part 53.
    On July 18, 1997, EPA promulgated the new 8-hour ozone NAAQS (see 
62 FR 38856). With the promulgation of the new 8-hour standard, and 
under a Presidential directive dated July 16, 1997, EPA also set into 
motion the process to revoke the 1-hour standard for areas in the 
nation that were attaining that standard. The 1-hour ozone standard was 
revoked for Wyoming on June 5, 1998 (see 63 FR 31014). A May 14, 1999 
ruling by the U. S. Court of Appeals for the D.C. Circuit, however 
undermined the basis for EPA's June 5, 1998 revocation of the 1-hour 
ozone standard. As the D.C. Circuit Court ruled that EPA could not 
enforce the new 8-hour standard, and it may be some time before the 
Agency's appeal to the Supreme Court is decided, EPA rescinded its 
findings that the 1-hour standard no longer applied in certain areas 
and reinstated the 1-hour ozone standard for all areas of the nation on 
July 20, 2000 (see 65 FR 45182). The effective date of the July 20, 
2000 reinstatement for Wyoming is October 18, 2000.

E. Section 9 Volatile Organic Compounds

    The State revised section 9 of the WAQSR to delete a provision 
regulating hydrocarbon emissions, because the State determined it was 
unenforceable and replaced it with a provision to control volatile 
organic compound (VOC) emissions through the application of Best 
Available Control Technology (BACT) in accordance with Section 21 
Permit requirements for construction, modification, and operation. In 
our comments on this revision, during the State's public hearing, we 
expressed concern that the State may be allowing existing sources to 
relax emission limits as a result of this rule change. However, in a 
June 23, 2000 letter, the State explained that any existing source that 
had been regulated under the previous version of this rule would not be 
able to remove emission controls without triggering the need for a 
permit to modify, which would require application of BACT. Thus, the 
State asserts that the new version of this rule is more enforceable and 
is likely to result in greater control of VOC emissions than the 
previous rule. We concur with the State and are therefore approving the 
revision.

F. Section 10 Nitrogen Oxides

    The State revised sections 10(b), 10(b)(vii), 10(b)(viii), and 
10(b)(ix) of the WAQSR. These revisions are minor editorial corrections 
that we are partially approving and partially disapproving. Section 
10(b) contains a ``director's discretion'' provision that allows the 
Administrator of the WAQD to approve the use of an equivalent test 
method to measure nitrogen oxide emissions. For the reasons discussed 
in section II.B above, we are partially disapproving the director's 
discretion provision in section 10(b), because it is inconsistent with 
section 110(i) of the Act.

G. Section 14 Control of Particulate Emissions

    The State made a minor revision to a reference to the method for 
measuring particulate matter emissions in section 14(h)(iv) of the 
WAQSR. This revision is partially approved and partially disapproved 
because it also contains a director's discretion provision that allows 
the Administrator of the WAQD to approve the use of variations to the 
test method. For the reasons discussed in section II.B above, we are 
partially disapproving the director's discretion provision in section 
14(h)(iv), because it is inconsistent with section 110(i) of the Act.

H. Section 21 Permit Requirements for Construction, Modification and 
Operation

    The State revised section 21(a)(vi) and 21(h) to reference 
additional permitting requirements in the hazardous air pollutant 
regulations. Section 21(a)(vi) was revised to include requirements for 
submitting permit applications under National Emission Standards for 
Hazardous Air Pollutant Standards and section 21(h) adds an expiration 
date for permits containing a case-by case Maximum Available Control 
Technology determination. We have determined both revisions are 
acceptable.

III. Final Action

    In this action, we are granting partial approval and partial 
disapproval of revisions to sections 2, 4, 5, 8, 9, 10, 14, and 21 of 
the WAQSR submitted as a SIP revision by the Governor of Wyoming on May 
21, 1999. We are publishing this rule without prior proposal because 
the Agency views this as a noncontroversial amendment and anticipates 
no adverse comments. However, in the ``Proposed Rules'' section of 
today's Federal Register publication, we are publishing a separate 
document that will serve as the proposal to approve the SIP revisions 
if adverse comments are filed. This rule will be effective February 20, 
2001 without further notice unless the Agency receives adverse comments 
by January 22, 2001. If we receive adverse comments, then we will 
publish a timely withdrawal of the direct final rule, in the Federal 
Register, informing the public that the rule will not take effect. All 
public comments received will then be addressed in a subsequent

[[Page 80332]]

final rule based on the proposed rule. We will not institute a second 
comment period on this action. Any parties interested in commenting 
must do so at this time. If no such comments are received, the public 
is advised that this rule will be effective on February 20, 2001, and 
no further action will be taken on the proposed rule. Please note that 
if we receive adverse comment on an amendment, paragraph, or section of 
this rule and if that provision may be severed from the remainder of 
the rule, we may adopt as final those provisions of the rule that are 
not the subject of an adverse comment.

IV. Administrative Requirements

A. Executive Order 12866

    The Office of Management and Budget (OMB) has exempted this 
regulatory action from Executive Order 12866, entitled ``Regulatory 
Planning and Review.''

B. Executive Order 13045

    Protection of Children from Environmental Health Risks and Safety 
Risks (62 FR 19885, April 23, 1997), applies to any rule that: (1) Is 
determined to be ``economically significant'' as defined under 
Executive Order 12866, and (2) concerns an environmental health or 
safety risk that EPA has reason to believe may have a disproportionate 
effect on children. If the regulatory action meets both criteria, the 
Agency must evaluate the environmental health or safety effects of the 
planned rule on children, and explain why the planned regulation is 
preferable to other potentially effective and reasonably feasible 
alternatives considered by the Agency.
    This rule is not subject to Executive Order 13045 because it does 
not involve decisions intended to mitigate environmental health or 
safety risks.

C. Executive Order 13084

    Under Executive Order 13084, EPA may not issue a regulation that is 
not required by statute, that significantly affects or uniquely affects 
the communities of Indian tribal governments, and that imposes 
substantial direct compliance costs on those communities, unless the 
Federal government provides the funds necessary to pay the direct 
compliance costs incurred by the tribal governments, or EPA consults 
with those governments. If EPA complies by consulting, Executive Order 
13084 requires EPA to provide to the Office of Management and Budget, 
in a separately identified section of the preamble to the rule, a 
description of the extent of EPA's prior consultation with 
representatives of affected tribal governments, a summary of the nature 
of their concerns, and a statement supporting the need to issue the 
regulation. In addition, Executive Order 13084 requires EPA to develop 
an effective process permitting elected officials and other 
representatives of Indian tribal governments ``to provide meaningful 
and timely input in the development of regulatory policies on matters 
that significantly or uniquely affect their communities.''
    Today's rule does not significantly or uniquely affect the 
communities of Indian tribal governments. This action does not involve 
or impose any requirements that affect Indian Tribes. Accordingly, the 
requirements of section 3(b) of Executive Order 13084 do not apply to 
this rule.

D. Executive Order 13132

    Federalism (64 FR 43255, August 10, 1999) revokes and replaces 
Executive Orders 12612 (Federalism) and 12875 (Enhancing the 
Intergovernmental Partnership). Executive Order 13132 requires EPA to 
develop an accountable process to ensure ``meaningful and timely input 
by State and local officials in the development of regulatory policies 
that have federalism implications.'' ``Policies that have federalism 
implications'' is defined in the Executive Order to include regulations 
that have ``substantial direct effects on the States, on the 
relationship between the national government and the States, or on the 
distribution of power and responsibilities among the various levels of 
government.'' Under Executive Order 13132, EPA may not issue a 
regulation that has federalism implications, that imposes substantial 
direct compliance costs, and that is not required by statute, unless 
the Federal government provides the funds necessary to pay the direct 
compliance costs incurred by State and local governments, or EPA 
consults with State and local officials early in the process of 
developing the proposed regulation. EPA also may not issue a regulation 
that has federalism implications and that preempts State law unless the 
Agency consults with State and local officials early in the process of 
developing the proposed regulation.
    This rule will not have substantial direct effects on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government, as specified in Executive Order 13132, because it 
merely approves a state rule implementing a federal standard, and does 
not alter the relationship or the distribution of power and 
responsibilities established in the Clean Air Act. Thus, the 
requirements of section 6 of the Executive Order do not apply to this 
rule.

E. Regulatory Flexibility

    The Regulatory Flexibility Act (RFA) generally requires an agency 
to conduct a regulatory flexibility analysis of any rule subject to 
notice and comment rulemaking requirements unless the agency certifies 
that the rule will not have a significant economic impact on a 
substantial number of small entities. Small entities include small 
businesses, small not-for-profit enterprises, and small governmental 
jurisdictions.
    This final partial approval rule will not have a significant impact 
on a substantial number of small entities because SIP approvals under 
section 110 and subchapter I, part D of the Clean Air Act do not create 
any new requirements but simply approve requirements that the State is 
already imposing. Therefore, because the Federal SIP approval does not 
create any new requirements, I certify that this action will not have a 
significant economic impact on a substantial number of small entities. 
Moreover, due to the nature of the Federal-State relationship under the 
Clean Air Act, preparation of flexibility analysis would constitute 
Federal inquiry into the economic reasonableness of state action. The 
Clean Air Act forbids EPA to base its actions concerning SIPs on such 
grounds. Union Electric Co., v. U.S. EPA, 427 U.S. 246, 255-66 (1976); 
42 U.S.C. 7410(a)(2).
    This final partial disapproval rule will not have a significant 
impact on a substantial number of small entities because this partial 
disapproval only affects a limited number of sources. Therefore, I 
certify that this action will not have a significant economic impact on 
a substantial number of small entities. Furthermore, as explained in 
this notice, the request does not meet the requirements of the Clean 
Air Act and EPA cannot approve the request. EPA has no option but to 
partially disapprove the submittal.
    The partial approval and partial disapproval will not affect an 
existing state requirements applicable to small entities. Federal 
disapproval of a state submittal does not affect its state-
enforceability.

F. Unfunded Mandates

    Under sections 202 of the Unfunded Mandates Reform Act of 1995

[[Page 80333]]

(``Unfunded Mandates Act''), signed into law on March 22, 1995, EPA 
must prepare a budgetary impact statement to accompany any proposed or 
final rule that includes a Federal mandate that may result in estimated 
costs to State, local, or tribal governments in the aggregate; or to 
the private sector, of $100 million or more. Under section 205, EPA 
must select the most cost-effective and least burdensome alternative 
that achieves the objectives of the rule and is consistent with 
statutory requirements. Section 203 requires EPA to establish a plan 
for informing and advising any small governments that may be 
significantly or uniquely impacted by the rule.
    EPA has determined that the partial approval action promulgated 
does not include a Federal mandate that may result in estimated costs 
of $100 million or more to either State, local, or tribal governments 
in the aggregate, or to the private sector. This Federal action 
partially approves pre-existing requirements under State or local law, 
and imposes no new requirements. Accordingly, no additional costs to 
State, local, or tribal governments, or to the private sector, result 
from this action.

G. Submission to Congress and the Comptroller General

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this rule and other 
required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2). This rule will be effective February 20, 2001 unless EPA 
receives adverse written comments by January 22, 2001.

H. National Technology Transfer and Advancement Act

    Section 12 of the National Technology Transfer and Advancement Act 
(NTTAA) of 1995 requires Federal agencies to evaluate existing 
technical standards when developing a new regulation. To comply with 
NTTAA, EPA must consider and use ``voluntary consensus standards'' 
(VCS) if available and applicable when developing programs and policies 
unless doing so would be inconsistent with applicable law or otherwise 
impractical.
    The EPA believes that VCS are inapplicable to this action. Today's 
action does not require the public to perform activities conducive to 
the use of VCS.

I. Petitions for Judicial Review

    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by February 20, 2001. Filing a 
petition for reconsideration by the Administrator of this final rule 
does not affect the finality of this rule for the purposes of judicial 
review nor does it extend the time within which a petition for judicial 
review may be filed, and shall not postpone the effectiveness of such 
rule or action. This action may not be challenged later in proceedings 
to enforce its requirements. (See section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Hydrocarbons, 
Incorporation by reference, Intergovernmental relations, Nitrogen 
dioxide, Ozone, Particulate matter, Reporting and recordkeeping 
requirements, Sulfur oxides, Volatile organic compounds.

    Dated: October 6, 2000.
Jack W. McGraw,
Acting Regional Administrator, Region VIII.

    Part 52, Chapter I, title 40 of the Code of Federal Regulations is 
amended as follows:

PART 52--[AMENDED]

    1. The authority citation for Part 52 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

Subpart ZZ--Wyoming

    2. Section 52.2620 is amended by adding paragraph (c)(29) to read 
as follows:


Sec. 52.2620  Identification of plan.

* * * * *
    (c) * * *
    (29) The Governor of Wyoming submitted revisions to sections 2, 4, 
5, 8, 9, 10, 14, and 21 of the Wyoming Air Quality Standards and 
Regulations (WAQSR) on May 21, 1999.
    (i) Incorporation by reference.
    (A) Revisions to the WAQSR, section 2 Definitions, subsection 
2(a)(xxx)(B) excluding the words ``or an equivalent or alternative 
method approved by the Administrator,'' effective October 15, 1998.
    (B) Revisions to the WAQSR, section 4 Sulfur oxides, subsection 
4(h) excluding the words ``or an equivalent method,'' effective October 
15, 1998.
    (C) Revisions to the WAQSR, section 5 Sulfuric acid mist excluding 
the words ``or an equivalent method,'' effective October 15, 1998.
    (D) Revisions to the WAQSR, section 8 Ozone, effective October 15, 
1998.
    (E) Revisions to the WAQSR, section 9 Volatile organic compounds, 
effective October 15, 1998.
    (F) Revisions to the WAQSR, section 10 Nitrogen oxides, subsections 
10(b), 10(b)(vii), 10(b)(viii), and 10(b)(ix), excluding the words ``or 
by an equivalent method'' in subsection 10(b), effective October 15, 
1998.
    (G) Revisions to the WAQSR, section 14 Control of particulate 
emissions, subsection 14(h)(iv) excluding the sentence, ``Provided that 
the Administrator may require that variations to said methods be 
included or that entirely different methods be utilized if he 
determines that such variations or different methods are necessary in 
order for the test data to reflect the actual emission rate of 
particulate matter,'' effective October 15, 1998.
    (H) Revisions to the WAQSR, section 21 Permit requirements for 
construction, modification and operation, subsections 21(a)(vi) and 
21(h), effective October 15, 1998.
    (ii) Additional material.
    (A) September 1, 1998 letter from Dan Olson, Administrator, Wyoming 
Air Quality Division, to Richard R. Long, Director, Air and Radiation 
Program, EPA Region 8.
    (B) June 23, 2000 letter from Dan Olson, Administrator, Wyoming Air 
Quality Division, to Richard R. Long, Program Manager, Air and 
Radiation, EPA Region VIII.

[FR Doc. 00-32239 Filed 12-20-00; 8:45 am]
BILLING CODE 6560-50-P