Wis. Stat. § 85.16: Department rules and forms.

(1) The secretary may make reasonable and uniform orders and rules deemed necessary to the discharge of the powers, duties and functions vested in the department. The secretary may also prescribe forms for applications, notices and reports required by law to be made to the department or which are deemed necessary to the efficient discharge of all powers, duties and functions and prescribe the form and manner in which those applications, notices and reports may be filed or submitted.

(2) Any person violating an order, determination or rule adopted under chs. 84 to 86, 110, 114, 218 and 341 to 349 and not subject to another statutory penalty shall be required to forfeit not less than $20 nor more than $400.