Cal. Health & Safety Code § 42301.10

In any district that has a permit system established pursuant to Section 42300, the air pollution control officer may include, in any permit issued to a Title V source, emission limits, standards, and other requirements that ensure compliance with all federal Clean Air Act “applicable requirements,” as that term is defined in regulations adopted by the Environmental Protection Agency pursuant to Title V, including those requirements specified in an applicable implementation plan as defined by Section 7602(q) of Title 42 of the United States Code, and Parts C (42 U.S.C. Sec. 7470 et seq.) and D (42 U.S.C. Sec. 7501 et seq.) of Title 1 of the Clean Air Act.