California Code, Health and Safety Code - HSC § 40441

After adoption of the plan, the south coast district shall have the responsibility for securing the cooperation of other public entities in the implementation of the plan, including all programs, plans, and projects relating to or affecting air quality within the south coast district.

The south coast district board may adopt such rules and regulations as do not conflict with state and federal laws for the coordination of local, state, and federal programs affecting air quality.