The Air Resources Board, in cooperation with the California Highway Patrol, have proposed regulations establishing inspection protocol for determining whether the engine of a heavy-duty vehicle met the federal emission standard applicable to the engine's model year at the time of manufacture, pursuant to AB 1009 (Pavley 2004).
The Final Regulation Order for the Air Resources Board's amendments to Title 13, CCR Sections 2180 through 2189 have been approved and filed with the Secretary of State. The regulation became effective on February 15, 2007
