(a) “Multifamily manufactured home,” for the purposes of this part, means either of the following:

(1) A structure transportable under permit in one or more sections, designed and equipped to contain not more than two dwelling units, a dormitory, or an efficiency unit, to be used either with a support system pursuant to

Section or a foundation system pursuant to subdivision (

a) of

Section 18551.

(2) A structure transportable under permit in one or more sections, designed to be used with a foundation system for three or more dwelling units, as defined by

Section 18003.3. (

b) Multifamily manufactured homes shall be constructed in compliance with applicable department regulations. The egress and fire separation requirements of Title of the California Code of Regulations applicable to dormitories, hotels, apartment houses, and structures that contain two dwelling units shall also be applicable to all multifamily manufactured homes constructed for those purposes. The accessibility and adaptability requirements of Title of the California Code of Regulations applicable to covered multifamily dwelling units shall also be applicable to multifamily manufactured homes containing three or more dwelling units. (

c) Notwithstanding any other provision of law, all provisions of law that apply to manufactured homes shall apply equally to multifamily manufactured homes, except as provided in this section. (

d) For purposes of this section: (1) “Dormitory” means a room or rooms inhabited for the purposes of temporary residence by two or more persons. (2) “Efficiency unit” has the same meaning as defined in

Section 17958.1. (3) “Multiunit manufactured housing” has the same meaning as “multifamily manufactured home,” as that term is defined in this section.