Revision to the South Coast Air Quality Management District Portion of the California State Implementation Plan, South Coast Rule 1315

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision for the South Coast Air Quality Management District (District) portion of the California SIP. This SIP revision proposes to incorporate Rule 1315--Federal New Source Review Tracking System--into the District's SIP approved New Source Review (NSR) program to establish the procedures for demonstrating equivalency with Federal offset requirements by specifying how the District will track debits and credits in its Offset Accounts for Federal NSR Equivalency for specific Federal nonattainment pollutants and their precursors. The District's SIP approved NSR program contained in Regulation XIII allows the District to exempt certain sources from obtaining offsetting emission reductions on the open market and for the District to provide offsets for designated sources that qualify, such as essential public services. EPA's proposal to approve this SIP revision is based on finding that Rule 1315 provides an adequate system to demonstrate on an on-going basis that an equivalent amount of offsets are being provided pursuant to this rule as would otherwise be required by the Clean Air Act (CAA) and that the emission reductions the District is crediting and debiting in its Offset Accounts meet the requirements of the CAA and can be used to provide the offsets otherwise required for Federal major sources and modifications.

Agency Contact: Laura Yannayon, EPA Region IX, (415) 972-3534, yannayon.laura@epa.gov.