California Code, Health and Safety Code - HSC § 18088

(a) Upon application for registration of a manufactured home, mobilehome, commercial coach, or truck camper previously registered outside this state, the department shall grant full faith and credit to the currently valid certificate of title describing the manufactured home, mobilehome, commercial coach, or truck camper, the ownership thereof, and any liens thereon, issued by the state in which the vehicle was last registered, except there shall be a notation upon the certificate of title of any and all liens and encumbrances other than those dependent upon possession.

(b) In the absence of knowledge by the department that any certificate of title issued by another state is forged, fraudulent, or void, the acceptance thereof by the department shall be a sufficient determination of the genuineness and regularity of the certificate and of the truth of the recitals therein, and no liability shall be incurred by any officer or employee of the department by reason of so accepting a certificate of title.