[Federal Register Volume 65, Number 246 (Thursday, December 21, 2000)]
[Proposed Rules]
[Page 80397]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-32240]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[WY-001-0006b; FRL-6886-9]


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

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The EPA is proposing to partially approve and partially 
disapprove 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. EPA is proposing to 
partially disapprove the provisions that allow the Administrator of the 
Wyoming Air Quality Division to approve alternative test methods to 
those required in the SIP (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 revision to the SIP and approval by EPA. The intended 
effect of this action, once final, is to make federally enforceable 
those provisions that EPA is approving. EPA is proposing this action 
under section 110 of the Act.
    In the ``Rules and Regulations'' section of this Federal Register, 
EPA is acting on the State's SIP revision as a direct final rule 
without prior proposal because the Agency views this as a 
noncontroversial SIP revision and anticipates no adverse comments. A 
detailed rationale for the approval is set forth in the preamble to the 
direct final rule. If EPA receives no adverse comments, EPA will not 
take further action on this proposed rule. If EPA receives adverse 
comments, EPA will withdraw the direct final rule and it will not take 
effect. EPA will address all public comments in a subsequent final rule 
based on this proposed rule. EPA will not institute a second comment 
period on this action. Any parties interested in commenting must do so 
at this time. Please note that if EPA receives adverse comment on an 
amendment, paragraph, or section of this rule and if that provision may 
be severed from the remainder of the rule, EPA may adopt as final those 
provisions of the rule that are not the subject of an adverse comment.

DATES: Comments must be received in writing on or before January 22, 
2001.

ADDRESSES: Written comments may be mailed 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 
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: See the information provided in the Direct 
Final action of the same title which is located in the Rules and 
Regulations section of this Federal Register.

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

    Dated: October 6, 2000.
Jack W. McGraw,
Acting Regional Administrator, Region VIII.
[FR Doc. 00-32240 Filed 12-20-00; 8:45 am]
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