California Code, Health and Safety Code - HSC § 40454

(a) Notwithstanding Section 40716 or 40717, or subdivision (c) of Section 40717.5, the south coast district shall not adopt or enforce any rule or regulation that would require any employer to submit a trip reduction plan.

(b) The south coast district may require employers with 100 or more employees at a single worksite to provide ride-matching information and transit information to employees at that worksite.