Wis. Stat. § 101.86: Municipal authority.

(1) Municipalities may:

(a) Enact an electrical code or otherwise exercise jurisdiction over electrical wiring and inspection of electrical wiring by enactment of ordinances, provided that the electrical code or ordinance strictly conforms with the state electrical wiring code promulgated by the department under s. 101.82 (1). A county ordinance shall apply in any city, village or town which has not enacted such an ordinance.

(b) Under s. 66.0301, jointly exercise the jurisdiction granted under par. (a).

(c) By ordinance, establish and collect fees to defray the cost of jurisdiction exercised under par. (a) or (b).

(d) By ordinance, provide remedies and penalties for violation of the jurisdiction exercised under par. (a) or (b).

(3)

(a) The cost of inspection services provided by any county that has enacted an ordinance under sub. (1), if not defrayed by fees, shall be charged to or taxed against the property within those cities, villages, and towns in the county that have not enacted an ordinance under sub. (1).

(b) No part of the cost of inspection services, if not defrayed by fees, may be charged to or taxed against the property within any city, village, or town that has enacted an ordinance under sub. (1).