(1) In this section, “restaurant” has the meaning given in s. 97.01 (14g).
(2) No city, village, town, or county may enact an ordinance requiring a restaurant, a person who holds a license for a restaurant, or a person who conducts, maintains, manages, or operates a restaurant to satisfy a requirement related to the issuance or possession of a certificate of food protection practices that is not found under s. 97.33.
(3)
(a) Except as provided in par. (b), if a city, village, town, or county has in effect on January 1, 2015, an ordinance that the city, village, town, or county is prohibited from enacting under sub. (2), the ordinance does not apply and may not be enforced.
(b) Paragraph (a) does not apply to an ordinance of a 1st class city that was in effect on March 20, 2014.