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

The Environmental Protection Agency (EPA) is taking final action to approve a submittal by the State of California (``State'') to revise its State Implementation Plan (SIP). The submittal consists of State regulations establishing standards and other requirements relating to the control of emissions from certain new and in-use on- road and 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 these regulations as part of the California SIP makes them federally enforceable.