Approval and Promulgation of State Implementation Plans; Arizona State Implementation Plan Revision, Maricopa County

Environmental Protection Agency (EPA).

Proposed rule.

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EPA proposes to approve revisions to the Arizona State Implementation Plan (SIP) which concern the control of volatile organic compounds (VOC) emissions from different surface coating operations using primarily metal and plastic substrates and the aerospace manufacturing and rework industry. The intended effect of this action is to regulate emissions of VOCs according to 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 submittal as a direct final rule without prior proposal because the Agency views this as a noncontroversial revision 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, no further activity is contemplated. If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule.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. Any parties interested in commenting should do so at this time.

Written comments must be received by October 20, 1999.

Comments should be addressed to: Andrew Steckel, Rulemaking Office (AIR-4), Air Division, U.S. Environmental Protection Agency, Region IX, 75 Hawthorne Street, San Francisco, CA 94105-3901. Copies of the rule revisions and EPA's evaluation report of each rule are available for public inspection at EPA's Region 9 office during normal business hours. Copies of the submitted rule revisions are also available for inspection at the following locations:

Rulemaking Office (AIR-4), Air Division, U.S. Environmental Protection Agency, Region IX, 75 Hawthorne Street, San Francisco, CA 94105; Environmental Protection Agency, Air Docket (6102), 401 ``M'' Street, SW., Washington, D.C. 20460; Arizona Department of Environmental Quality, 3003 North Central Avenue, Phoenix, AZ 85012; and, Maricopa County Environmental Services Department, 1001 North Central Ave., Phoenix, AZ 85004.

Jerald S. Wamsley, [AIR-4], Air Division, U.S. Environmental Protection Agency, Region 9, 75 Hawthorne Street, San Francisco, CA 94105-3901, Telephone: (415) 744-1226.