(a) In this section, "rehabilitation" means the alteration, remodeling, enlargement, or repair of an existing structure.
(b) A municipality that adopts a building code, other than the International Residential Code adopted under Section 214.212, shall adopt one of the following:
(1) prescriptive provisions for rehabilitation as part of the municipality's building code; or
(2) the rehabilitation code that accompanies the building code adopted by the municipality.
(c) The rehabilitation code or prescriptive provisions do not apply to the rehabilitation of a structure to which the International Residential Code applies or to the construction of a new structure.
(d) A municipality may:
(1) adopt the rehabilitation code or prescriptive provisions for rehabilitation recommended by the Texas Board of Architectural Examiners; or
(2) amend its rehabilitation code or prescriptive provisions for rehabilitation.
(e) A municipality shall enforce the prescriptive provisions for rehabilitation or the rehabilitation code in a manner consistent with the enforcement of the municipality's building code.