Approval and Promulgation of Implementation Plans; State of California; Revised Format for Materials Incorporated by Reference

The Environmental Protection Agency (EPA) is revising the format for materials submitted by the State of California that are incorporated by reference (IBR) into the California State Implementation Plan (SIP). The regulations affected by this format change have all been previously submitted by the State of California and approved by the EPA. This format revision will primarily affect the "Identification of plan" section, as well as the format of the SIP materials that will be available for public inspection at the National Archives and Records Administration (NARA) and the EPA Regional Office. This action, which only relates to state statutes and state regulations and does not include local and regional California air district rules, local ordinances, source-specific requirements, or nonregulatory and quasi-regulatory provisions, is the first of a series of actions intended to change the format for the entire California SIP.