Section 40915 Of Chapter 10. District Plans To Attain State Ambient Air Quality Standards From California Health And Safety Code >> Division 26. >> Part 3. >> Chapter 10.

. Each district plan shall contain contingency measures to be implemented upon a finding by the state board, pursuant to Section 41503.3, that the district is failing to achieve interim goals or maintain adequate progress toward attainment. Any regulations necessary to implement the contingency measures shall be adopted by the district within 180 days following the state board's determination of inadequate progress.