[Federal Register Volume 60, Number 88 (Monday, May 8, 1995)]
[Proposed Rules]
[Page 22540]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-10815]



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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[AZ 47-1-6945b; FRL-5191-2]


Proposed Approval of Implementation Plans; Arizona--State 
Implementation Plan Revision, Maricopa Nonattainment Area; Basic and 
Enhanced Inspection and Maintenance Program for Carbon Monoxide and 
Ozone

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve revisions to the Arizona State 
Implementation Plan (SIP) which concern the implementation of both a 
basic inspection/maintenance (I/M) and enhanced I/M program to be 
implemented in ozone and carbon monoxide (CO) nonattainment areas of 
Arizona.
    The intended effect of proposing approval of this SIP is to control 
emissions of CO and ozone precursors in accordance with the 
requirements of the Clean Air Act, as amended in 1990 (CAA or the Act). 
In the Final Rules section of this Federal Register, the EPA is 
approving the state's SIP revision as a direct final rule without prior 
proposal because the Agency views this as a noncontroversial revision 
amendment and anticipates no adverse comments. A detailed rationale for 
this approval is set forth in the direct final rule. If no adverse 
comments are received in response to this proposed rule, no further 
activity is contemplated in relation to this rule. If EPA receives 
adverse comments, the direct final rule will be withdrawn and all 
public comments received will be addressed in a subsequent final rule 
based on this proposed rule. The EPA will not institute a second 
comment period on this document. Any parties interested in commenting 
on this action should do so at this time.

DATES: Comments on this proposed rule must be received in writing by 
June 7, 1995.

ADDRESSES: Written comments on this action should be addressed to: 
Roxanne Johnson, Mobile Source Section (A-2-1), Air and Toxics 
Division, U.S. Environmental Protection Agency, Region 9, 75 Hawthorne 
Street, San Francisco, CA 94105.

    Copies of the SIP revision and EPA's evaluation of the SIP are 
available for public inspection at EPA's Region 9 office during normal 
business hours. Copies of the submitted SIP revisions are also 
available for inspection at the following locations: Arizona Department 
of Environmental Quality, Air Quality Division, 3033 North Central 
Avenue, Phoenix, Arizona 85012, Telephone: (602) 207-2300.

FOR FURTHER INFORMATION CONTACT: Roxanne Johnson, Mobile Sources 
Section, A-2-1, Air and Toxics Division, U.S. Environmental Protection 
Agency, Region 9, 75 Hawthorne Street, San Francisco, CA 94105, 
Telephone: (415) 744-1225.

SUPPLEMENTARY INFORMATION: This document concerns an Arizona Department 
of Environmental Quality (ADEQ) SIP revision to implement a basic and 
enhanced I/M program in CO and ozone nonattainment areas of Arizona. 
Because the Arizona legislature required upgrades for an enhanced I/M 
program that began January 3, 1995 which is currently running and 
operating smoothly, and because the State submitted a fully approvable 
SIP revision, the EPA decided to approve and take direct final action 
on the SIP submittal. For further information, please see the 
information provided in the direct final action which is located in the 
Rules Section of this Federal Register.

    Authority: 42 U.S.C. 7401-7671q.

    Dated: April 5, 1995.

John Wise,

Acting Regional Administrator.

[FR Doc. 95-10815 Filed 5-5-95; 8:45 am]

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