Approval and Promulgation of Implementation Plans; California; California Mobile Source Regulations

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the California State Implementation Plan (SIP) consisting of certain state regulations establishing standards and other requirements relating to the control of emissions from new on-road and new and in-use off-road vehicles and engines. The EPA is approving the SIP revision because the regulations meet the applicable requirements of the Clean Air Act. Approval of the regulations as part of the California SIP makes them federally enforceable.