The Wisconsin Fair Employment Act prohibits hiring practices that discriminate on the basis of age, race, creed, color, disability, marital status, sex, national origin, ancestry, sexual orientation, arrest and conviction record, genetic test results, military service, use or nonuse of lawful products off the employer's premises during nonworking hours, or declining to attend a meeting or participate in any communication about religious or political matters. The Act covers all employers regardless of size (WI Stat. Sec. 111.31 et seq.). "Military service" is defined as service in the U.S. armed forces, the state defense force, the National Guard of any state, or any other reserve component of the U.S. armed forces.
Separate state laws prohibit employers from requiring workers to submit to genetic tests, AIDS tests, or lie detector tests.