Cal. Health & Safety Code § 18086

The department may accept an application for registration of a manufactured home, mobilehome, commercial coach, or truck camper which is not within the state, but which is to be registered to a resident of this state, at the time all documents and fees, as determined by the department in accordance with the provisions of this chapter, are submitted to the department. Any fees submitted pursuant to this section shall not be subject to refund based upon the fact that the manufactured home, mobilehome, commercial coach, or truck camper is not and has not been within this state.