Health & Saf. Code, § 18008

(a) “Mobilehome,” for the purposes of this part, means a structure that was constructed prior to June 15, 1976, is transportable in one or more sections, is eight body feet or more in width, or 40 body feet or more in length, in the traveling mode, or, when erected onsite, is 320 or more square feet, is built on a permanent chassis and designed to be used as a single-family dwelling with or without a foundation system when connected to the required utilities, and includes the plumbing, heating, air conditioning, and electrical systems contained therein. “Mobilehome” includes any structure that meets all the requirements of this paragraph and complies with the state standards for mobilehomes in effect at the time of construction. “Mobilehome” does not include a commercial modular, as defined in Section 18001.8, factory-built housing, as defined in Section 19971, a manufactured home, as defined in Section 18007, a multifamily manufactured home, as defined in Section 18008.7, or a recreational vehicle, as defined in Section 18010.

(b) Notwithstanding any other provision of law, if a codified provision of state law uses the term “mobilehome,” and it clearly appears from the context that the term “mobilehome” should apply only to mobilehomes, as defined under subdivision (a), the codified provision shall apply only to those mobilehomes. If any codified provision of state law, by its context, requires that the term applies to mobilehomes or manufactured homes without regard to the date of construction, the codified provision shall apply to both mobilehomes, as defined under subdivision (a), and manufactured homes, as defined under Section 18007.