Cal. Health & Saf. Code § 18102.5
If application is made to the department for a transfer of registration of a manufactured home, mobilehome, commercial coach, truck camper, or floating home to a new registered or legal owner and if the applicant is unable to present the certificate of title or registration card issued for the manufactured home, mobilehome, commercial coach, truck camper, or floating home because it is lost or otherwise not available, the department may receive the application and investigate the circumstances of the case and may require the filing of certifications or other information. When the department is satisfied that the applicant is entitled to a transfer of registration, the department may transfer the registration of the manufactured home, mobilehome, commercial coach, truck camper, or floating home and issue a new certificate of title and registration card to the person or persons found to be entitled thereto.
Ca. Health and Saf. Code § 18102.5