California Code, Health and Safety Code - HSC § 44001.5

(a) A duty of enforcing and administering this chapter is vested in the chief of the bureau who is responsible to the director.

(b) The department shall take those actions consistent with its statutory authority to ensure that the reduction in vehicle emissions of hydrocarbons, carbon monoxide, and oxides of nitrogen meet or exceed the reductions required by the amendments enacted to the Clean Air Act in 1990.  1 The department shall endeavor to achieve these vehicle emission reductions as expeditiously as practicable, but not later than the deadlines established by the amendments enacted to the Clean Air Act in 1990.

(c) The department shall also ensure that gross polluters are identified and failed when tested pursuant to this chapter and that vehicles meeting the state standards are protected from being falsely failed.

(d) The department may exercise the emergency rulemaking powers in Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code in order to promptly issue any regulations required to implement the 1994 amendments to this chapter.