California Code, Health and Safety Code - HSC § 44210

The requirements of Section 44202 do not apply to any motor vehicle having a certificate of conformity issued by the federal Environmental Protection Agency pursuant to the federal Clean Air Act (42 U.S.C. Section 7401, et seq.) and originally registered in another state by a person who was a resident of that state for at least one year prior to the original registration, who subsequently establishes residence in this state and who, upon registration of the vehicle in California, provides evidence satisfactory to the Department of Motor Vehicles of that previous residence and registration.