Can my employer drug test me in Wisconsin?
1. Federal Framework
Drug-Free Workplace Act for federal contractors. DOT regulations (49 C.F.R. Part 40) for transportation. Federal aviation, nuclear, pipeline, MSHA rules.
2. State Drug-Testing Statute
Wisconsin has no comprehensive private-employer testing law. Wis. Stat. § 111.31 et seq. (Wisconsin Fair Employment Act, WFEA) provides general anti-discrimination framework. Wis. Stat. § 111.35 prohibits discrimination against employees for use of lawful products off premises during nonworking hours, but excludes substances illegal under federal law (effectively excluding marijuana). Public-sector testing limited by Fourth Amendment.
3. Test Categories
All categories permitted: pre-employment, random, reasonable suspicion, post-accident, return-to-duty.
4. Required Procedures
No statutory procedure for private employers. Best practice: written policy, SAMHSA-certified lab, MRO review, GC/MS confirmation.
5. Marijuana Considerations
Wisconsin has not legalized recreational or comprehensive medical marijuana (as of 2026). CBD with under 0.3% THC legal under Wis. Stat. § 961.32 but no employment protections. Because marijuana remains federally illegal, § 111.35 lawful-product protection does not apply to cannabis.
6. Safety-Sensitive Carve-Outs
DOT-covered positions per 49 C.F.R. Part 40. Healthcare workers handling controlled substances. Law enforcement, firefighters, peace officers.
7. ADA / Disability
Current illegal drug use not protected under WFEA (Wis. Stat. § 111.32(8) handicap provisions) or ADA. Recovering addicts in supervised treatment protected. Prescription medications require accommodation analysis.
8. Remedies for Improper Test
Wis. Stat. § 111.35 violations (for lawful products like tobacco, alcohol off-duty): WFEA complaint process, back pay, reinstatement. Wrongful discharge in violation of public policy (Brockmeyer/Hausmann) narrow. Defamation, invasion of privacy possible.
This is legal information, not legal advice.
- Terminated for lawful off-duty tobacco or alcohol use detected on test
- Disability-related prescription medication caused positive test and termination
- Test results disclosed to third parties causing reputational harm
- Wis. Stat. § 111.35
- Wis. Stat. § 111.31 (WFEA)
- Wis. Stat. § 961.32
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.