Wis. Stat. § 103.02
No person may be employed or be permitted to work in any place of employment or at any employment for such period of time during any day, night or week, as is dangerous or prejudicial to the person's life, health, safety or welfare. The department shall investigate, ascertain, determine and fix such reasonable classification, and promulgate rules fixing a period of time, or hours of beginning and ending work during any day, night or week, which shall be necessary to protect the life, health, safety or welfare of any person, or to carry out the purposes of ss. 103.01 to 103.03. The department shall, by rule, classify such periods of time into periods to be paid for at regular rates and periods to be paid for at the rate of at least one and one-half times the regular rates. Such investigations, classifications and orders shall be made as provided in s. 103.005 and the penalties under s. 103.005(12) shall apply to and be imposed for any violation of ss. 103.01 to 103.03. Such orders shall be subject to review in the manner provided in ch. 227. Section 111.322(2m) applies to discharge or other discriminatory acts arising in connection with any proceeding under this section.
Wis. Stat. § 103.02
Chapter 103 does not provide the exclusive remedy for enforcement of claims under this section. Claims may be enforced by a private action brought under s. 109.03(5). German v. DOT, 223 Wis. 2d 525, 589 N.W.2d 651 (Ct. App. 1998), 98-0250. Affirmed. 2000 WI 62, 235 Wis. 2d 576, 612 N.W.2d 50, 98-0250. A violation of the public policy expressed by this section is grounds for a wrongful discharge action. Wilcox v. Niagra of Wisconsin Paper Corp. 965 F.2d 355 (1992). Wisconsin requires time spent donning and doffing safety gear to be compensated at the minimum wage or higher, and that this time counts toward the limit after which the overtime rate kicks in. Wisconsin law is not preempted by federal law. Spoerle v. Kraft Foods Global, Inc. 614 F.3d 427 (2010).