California Exhaust Law 2025. Newer california standards along with federal standards originally applied to model year vehicles 2017 through 2025, however these were rolled back by the federal safer. The california exhaust emissions regulations for hmc are in title 13, california code of regulations, section 1958 (t13 ccr § 1958).
California approves world’s first regulation to phase out dirty combustion trucks and protect public health. This content isn’t in this site’s subscription plan.