(1) It shall be the responsibility of each local government, each legally constituted enforcement district, and each state agency with statutory authority to regulate building construction to enforce the building code adopted by such body in accordance with s. 553.73, unless such responsibility has been delegated to another unit of government pursuant to s. 553.79(9). The governing bodies of local governments may provide a schedule of fees for the enforcement of the provisions of this part. The authority of state enforcing agencies to set fees for enforcement shall be derived from authority existing on the effective date of this act. However, nothing contained in this subsection shall operate to limit such agencies from adjusting their fee schedule in conformance with existing authority.

(2) Except for charter counties, any two or more counties or municipalities, or any combination thereof, may, in accordance with the provisions of chapter 163, governing interlocal agreements, form an enforcement district for the purpose of adopting, enforcing, and administering the provisions of the State Minimum Building Codes. Each district so formed shall be registered with the department on forms to be provided for that purpose.

(3) Each enforcement district shall be governed by a board, the composition of which shall be determined by the affected localities. At its own option each enforcement district or local enforcement agency may promulgate rules granting to the owner of a single-family residence one or more exemptions from the State Minimum Building Codes relating to:

(a) Addition, alteration, or repairs performed by the property owner upon his own property, provided any addition or alteration shall not exceed 1,000 square feet or the square footage of the primary structure, whichever is less.

(b) Addition, alteration, or repairs by a nonowner within a specific cost limitation set by rule, provided the total cost shall not exceed $5,000 within any 12-month period.

(c) Building and inspection fees. Each code exemption, as defined in paragraphs (a), (b), and (c), shall be certified to the local board 10 days prior to implementation and shall only be effective in the territorial jurisdiction of the enforcement district or local enforcement agency implementing it.