# Approval and Promulgation of Air Quality Implementation Plans; Commonwealth of Pennsylvania; Gasoline Volatility Requirements for Allegheny County
**AGENCY:**
Environmental Protection Agency (EPA).
**ACTION:**
Proposed rule.
**SUMMARY:**
EPA is proposing to approve State Implementation Plan (SIP) revisions submitted by the Pennsylvania Department of Environmental Protection (PADEP) on behalf of the Allegheny County Health Department (ACHD). This action proposes to approve ACHD's revised general rules for the use of cleaner gasoline, and changes to the gasoline volatility regulations for Allegheny County, Pennsylvania. In the Final Rules section of this *Federal Register* , EPA is approving the State's SIP submittal as a direct final rule without prior proposal because the Agency views this as a noncontroversial submittal and anticipates no adverse comments. A more detailed description of the state submittal and EPA's evaluation are included in a Technical Support Document (TSD) prepared in support of this rulemaking action. A copy of the TSD is available, upon request, from the EPA Regional Office listed in the *ADDRESSES* section of this document. If no adverse comments are received in response to this action, 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 If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period. Any parties interested in commenting on this action should do so at this time.
**DATES:**
Comments must be received in writing by May 17, 2001.
**ADDRESSES:**
Written comments should be addressed to David L. Arnold, Chief, Air Quality Planning and Information Services Branch, Mailcode 3AP21, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. Copies of the documents relevant to this action are available for public inspection during normal business hours at the Air Protection Division, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103, and the Allegheny County Health Department, Bureau of Environmental Quality, Division of Air Quality, 301 39th Street, Pittsburgh, Pennsylvania 15201.
**FOR FURTHER INFORMATION CONTACT:**
Jill Webster, (215) 814-2033, at the EPA Region III address above, or by e-mail at *[email protected].*
**SUPPLEMENTARY INFORMATION:**
For further information, please see the information provided in the direct final action, with the same title, that is located in the “Rules and Regulations” section of this *Federal Register* publication.
Dated: March 19, 2001.
William C. Early,
Acting Regional Administrator, Region III.