California Code, Penal Code - PEN § 460

(a) Every burglary of an inhabited dwelling house, vessel, as defined in the Harbors and Navigation Code, which is inhabited and designed for habitation, floating home, as defined in subdivision (d) of Section 18075.55 of the Health and Safety Code, or trailer coach, as defined by the Vehicle Code, or the inhabited portion of any other building, is burglary of the first degree.

(b) All other kinds of burglary are of the second degree.

(c) This section shall not be construed to supersede or affect Section 464 of the Penal Code.