Approval and Promulgation of State Implementation Plans; California State Implementation Plan Revision; South Coast Air Quality Management District

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[CA 022-0087b; FRL-6138-3]

Approval and Promulgation of State Implementation Plans;

California State Implementation Plan Revision; South Coast Air Quality

Management District

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve a revision to the California State

Implementation Plan (SIP) which concerns the control of oxides of

nitrogen (NOX) from electric power generating systems within

the South Coast Air Quality Management District. The intended effect of

proposing approval of this rule is to regulate emissions of

NOX in accordance with the requirements of the Clean Air

Act, as amended in 1990 (CAA or the Act). In the Rules 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 action and anticipates no adverse comments. A detailed

rationale for this approval is set forth in the direct final rule. If

no relevant adverse comments are received in response to the direct

final rule, no further activity is contemplated in relation to this

rule. If EPA receives relevant adverse comments, the direct final rule

will not take effect and all public comments received will be addressed

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 on should do so at this time.

DATES: Comments must be received in writing by September 10, 1998.

ADDRESSES: Written 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 and EPA's evaluation report are available for

public inspection at EPA's Region IX office during normal business

hours. Copies of the submitted rule are also available for inspection

at the following locations:

U.S. Environmental Protection Agency, Air Docket (6102), 401 ``M''

Street, SW, Washington, DC 20460.

California Air Resources Board, Stationary Source Division, Rule

Evaluation Section, 2020 ``L'' Street, Sacramento, CA 95814.

South Coast Air Quality Management District, 21865 E. Copley Drive,

Diamond Bar, CA 91765-4182.

FOR FURTHER INFORMATION CONTACT: Andrew Steckel, Rulemaking Office

(AIR-4), Air Division, U.S. Environmental Protection Agency, Region IX,

75 Hawthorne Street, San Francisco, CA 94105-3901, Telephone: (415)

744-1185.

SUPPLEMENTARY INFORMATION: This document concerns South Coast Air

Quality Management District (SCAQMD) Rule 1135, Emissions of Oxides of

Nitrogen from Electric Power Generating Systems. SCAQMD Rule 1135 was

submitted to EPA on January 28, 1992 by the California Air Resources

Board. 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 et seq.

Dated: July 28, 1998.

Sally Seymour,

Acting Regional Administrator, Region IX.

[FR Doc. 98-21352 Filed 8-10-98; 8:45 am]

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