Cal. CIV § 798.3

(a) “Mobilehome” is a structure designed for human habitation and for being moved on a street or highway under permit pursuant to Section 35790 of the Vehicle Code. Mobilehome includes a manufactured home, as defined in Section 18007 of the Health and Safety Code, and a mobilehome, as defined in Section 18008 of the Health and Safety Code, but, except as provided in subdivision (b), does not include a recreational vehicle, as defined in Section 799.29 of this code and Section 18010 of the Health and Safety Code or a commercial coach as defined in Section 18001.8 of the Health and Safety Code.

(b) “Mobilehome,” for purposes of this chapter, other than Section 798.73, also includes trailers and other recreational vehicles of all types defined in Section 18010 of the Health and Safety Code, other than motor homes, truck campers, and camping trailers, which are used for human habitation if the occupancy criteria of either paragraph (1) or (2), as follows, are met:

(1) The trailer or other recreational vehicle occupies a mobilehome site in the park, on November 15, 1992, under a rental agreement with a term of one month or longer, and the trailer or other recreational vehicle occupied a mobilehome site in the park prior to January 1, 1991.

(2) The trailer or other recreational vehicle occupies a mobilehome site in the park for nine or more continuous months commencing on or after November 15, 1992.

“Mobilehome” does not include a trailer or other recreational vehicle located in a recreational vehicle park subject to Chapter 2.6 (commencing with Section 799.20).