[Federal Register Volume 67, Number 25 (Wednesday, February 6, 2002)]
[Proposed Rules]
[Pages 5552-5553]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 02-2707]


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

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[WY-001-0007b, WY-001-0008b, WY-001-0009b; FRL-7130-4]


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

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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

SUMMARY: The EPA is proposing to take direct final action partially 
approving and partially disapproving revisions to the State 
Implementation Plan (SIP) submitted by the designee of the Governor of 
Wyoming on August 9, 2000; August 7, 2001; and August 13, 2001. These 
revisions are intended to restructure and modify the State's air 
quality rules so that they will allow for more organized expansion and 
revision and are up to date with Federal

[[Page 5553]]

requirements. The August 9, 2000 revisions include a complete 
restructuring of the Wyoming Air Quality Standards and Regulations 
(WAQSR) from a single chapter into thirteen separate chapters. In 
addition to restructuring the regulations, the State's August 9, 2000 
revisions also update the definition in Chapter 3, Section 6 Volatile 
organic compounds (previously Chapter 1, Section 9) and include 
revisions to Chapter 6, Section 4 Prevention of significant 
deterioration (PSD) (previously Chapter 1, Section 24). The August 7, 
2001 revisions include the addition of a credible evidence provision 
and another update to the definition of VOC. The August 13, 2001 
revisions include changes to the State's particulate matter 
regulations. EPA is proposing to partially approve these SIP revisions 
because they are consistent with Federal requirements. EPA is proposing 
to partially disapprove the provisions of the State's submittal that 
allow the Administrator of the Wyoming Air Quality Division (WAQD) to 
approve alternative test methods in place of those required in the SIP, 
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 plan that must be approved by EPA. 
EPA is proposing these actions under section 110 of the Act. We are not 
acting on Chapter 8, Section 4 Transportation Conformity (part of the 
August 9, 2000 submittal) or on the PM2.5 revisions in 
Chapter 1 and Chapter 2 of the State's August 13, 2001 submittal. In 
the ``Rules and Regulations'' section of this Federal Register, EPA is 
approving 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 March 8, 2002.

ADDRESSES: Written comments may be mailed to Richard R. Long, Director, 
Air and Radiation Program, Mailcode 8P-AR, Environmental Protection 
Agency (EPA), 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. 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: Megan Williams, EPA, Region VIII, 
(303) 312-6431.

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: January 3, 2002.
Jack W. McGraw,
Acting Regional Administrator, Region VIII.
[FR Doc. 02-2707 Filed 2-5-02; 8:45 am]
BILLING CODE 6560-50-P