Minnesota Does Not Ban Workplace Drug Testing. It Makes Your Policy Document the Thing You Get Sued Over.

A national employer opens a Minnesota facility, brings its standard substance-abuse program with it, and runs a post-accident test on a forklift operator. The lab is certified. The chain of custody is clean. The confirmatory test is positive. The employee is fired.

The employer may still lose, and the reason has nothing to do with the test.

Minnesota’s Drug and Alcohol Testing in the Workplace Act — Minn. Stat. §§ 181.950 to 181.957, enacted in 1987 and reworked heavily in 2023, 2024, and 2025 — does not prohibit testing. It conditions the right to ask on a document, and then attaches a private damages action to any violation of the statute. The document is where these cases are won and lost.

The gate: no test is authorized without a written policy

Minn. Stat. § 181.951, subd. 1 is the whole architecture in three sentences:

(a) An employer may not request or require an employee or job applicant to undergo drug and alcohol testing except as authorized in this section.

(b) An employer may not request or require an employee or job applicant to undergo drug or alcohol testing unless the testing is done pursuant to a written drug and alcohol testing policy that contains the minimum information required in section 181.952 and either: (1) is conducted by a testing laboratory which participates in one of the programs listed in section 181.953, subdivision 1; or (2) complies with the oral fluid test procedures under section 181.953, subdivision 5a.

(c) An employer may not request or require an employee or job applicant to undergo drug and alcohol testing on an arbitrary and capricious basis.

Read the structure. Paragraph (a) makes testing unlawful except as authorized. Paragraph (b) makes the authorization contingent on a compliant written policy and a qualifying laboratory or oral-fluid procedure. There is no residual category of permissible testing outside those conditions.

The verb matters, too. The prohibition is on requesting or requiring. An employer that asks an employee to take a test it had no policy authorizing has violated the statute even if the employee agrees.

The six things the policy must say

Minn. Stat. § 181.952, subd. 1. The policy “must, at a minimum, set forth the following information”:

(1) the employees or job applicants subject to testing under the policy;

(2) the circumstances under which drug or alcohol and cannabis testing may be requested or required;

(3) the right of an employee or job applicant to refuse to undergo drug and alcohol and cannabis testing and the consequences of refusal;

(4) any disciplinary or other adverse personnel action that may be taken based on a confirmatory test verifying a positive test result on an initial screening test;

(5) the right of an employee or job applicant to explain a positive test result on a confirmatory test or request and pay for a confirmatory retest; and

(6) any other appeal procedures available.

And the policy has to be delivered and posted. Subdivision 2 requires written notice of the policy to all affected employees on adoption, to a previously non-affected employee on transfer into a covered position, and to a job applicant “upon hire and before any testing of the applicant if the job offer is made contingent on the applicant passing drug and alcohol testing.” It also requires the employer to “post notice in an appropriate and conspicuous location on the employer’s premises” that a policy exists and that copies are available for inspection during regular business hours.

There is one more paper step before the sample is taken. Minn. Stat. § 181.953, subd. 6(a): before requesting a test, the employer “shall provide the employee or job applicant with a form, developed by the employer, on which to acknowledge that the employee or job applicant has seen the employer’s drug and alcohol testing or cannabis testing policy.”

That is four documents — the policy, the individual notice, the posted notice, and the acknowledgment form — before a lawful test exists. An employer that can produce all four is in a very different position from one that can produce a lab report.

When testing is permitted

Five authorizations, each with its own conditions. Section 181.951:

Two definitions carry most of the weight. “Safety-sensitive position” means “a job, including any supervisory or management position, in which an impairment caused by drug, alcohol, or cannabis usage would threaten the health or safety of any person.” § 181.950, subd. 13. “Reasonable suspicion” means “a basis for forming a belief based on specific facts and rational inferences drawn from those facts.” § 181.950, subd. 12.

And “random” is defined so that it has to actually be random. Subdivision 11 requires a mechanism that “(1) results in an equal probability that any employee from a group of employees subject to the selection mechanism will be selected and (2) does not give an employer discretion to waive the selection of any employee selected under the mechanism.”

Note what is not on the list. There is no general “for cause,” no “at management’s discretion,” and no post-hire universal screening. Section 181.951, subd. 7, adds that employers “do not have a legal duty to request or require an employee or job applicant to undergo drug or alcohol testing” — the statute grants permission, it does not create an obligation.

Cannabis is now a separate regime

The 2023 amendments pulled cannabis out of the definition of “drug” and built a parallel track. Minn. Stat. § 181.950, subd. 4, defines “drug” as a controlled substance under § 152.01, subd. 4, “but does not include marijuana, tetrahydrocannabinols, cannabis flower …, cannabis products …, lower-potency hemp edibles …, and hemp-derived consumer products.” “Cannabis testing” gets its own definition at subd. 5a.

Three operative rules follow. Section 181.951, subd. 8:

(a) An employer must not request or require a job applicant to undergo cannabis testing as a condition of employment unless otherwise required by state or federal law.

(b) Unless otherwise required by state or federal law, an employer must not refuse to hire a job applicant solely because the job applicant submits to a cannabis test or a drug and alcohol test authorized by this section and the results of the test indicate the presence of cannabis.

(c) An employer must not request or require an employee or job applicant to undergo cannabis testing on an arbitrary or capricious basis.

Subdivision 9 then restores the old rule for seven categories of position — safety-sensitive positions, peace officers, firefighters, positions requiring face-to-face care of children, vulnerable adults, or patients, positions requiring a commercial driver’s license or federally mandated testing, positions funded by a federal grant, and any other position for which state or federal law requires cannabis testing. For those, “cannabis and its metabolites are considered a drug.”

Work rules about cannabis only exist if they are written into the policy. Section 181.952, subd. 3(b): an employer “may only enact and enforce written work rules prohibiting” cannabis use, possession, impairment, sale, or transfer while working, on premises, or operating employer equipment “in a written policy that contains the minimum information required by this section.” Section 181.953, subd. 10a, then lists what an employer may discipline for — including, at clause (1), the situation where “as the result of consuming” cannabis “the employee does not possess that clearness of intellect and control of self that the employee otherwise would have.”

The pattern is the same as everywhere else in this statute: the right to act depends on what the document says.

Confirmatory testing, and the question of who pays

No adverse action on a screening test. Section 181.953, subd. 10(a): an employer “may not discharge, discipline, discriminate against, or request or require rehabilitation of an employee on the basis of a positive test result from an initial screening test that has not been verified by a confirmatory test.” Subdivision 11 says the same for withdrawing a job offer.

The employer pays for testing. The employee pays for the retest. Section 181.953, subd. 4: “Except as provided in subdivision 9, an employer may not request or require an employee or job applicant to contribute to, or pay the cost of, drug or alcohol testing or cannabis testing under sections 181.950 to 181.954.” And subdivision 9 is the confirmatory retest, which the employee may request “at the employee’s or job applicant’s own expense after notice of a positive test result on a confirmatory test.”

The retest has its own timetable, and it runs in working days:

• The employee has five working days after notice of the confirmatory test result to notify the employer in writing of the intention to obtain a retest. § 181.953, subd. 9.
• The employer has three working days after receiving that notice to notify the original laboratory. Id.
• The retest “must use the same drug, alcohol, or cannabis threshold detection levels as used in the original confirmatory test,” and “[i]f the confirmatory retest does not confirm the original positive test result, no adverse personnel action based on the original confirmatory test may be taken.” Id.

Separately, the employee has three working days after notice of a positive confirmatory result to submit an explanation. § 181.953, subd. 6(c). And the employer has three working days after receiving the lab report to inform the employee in writing of the result and of the right to a copy of the report, and — for a positive confirmatory result — of the rights in subdivisions 6(b), 9, and either 10 or 11. § 181.953, subd. 7.

The one place the employer pays for the second test is oral fluid testing. Added in 2024, § 181.953, subd. 5a(b): after an oral fluid test that is positive, inconclusive, or invalid, “[w]ithin 48 hours … the employee or job applicant may request drug or alcohol testing or cannabis testing at no cost to the employee or job applicant using the services of a testing laboratory under subdivision 1.” A confirmatory retest after that laboratory test is back to the employee’s own expense. § 181.953, subd. 5a(c).

The first positive result is not a firing offense

This is the provision out-of-state employers most reliably violate. Minn. Stat. § 181.953, subd. 10(b):

In addition to the limitation under paragraph (a), an employer may not discharge an employee for whom a positive test result on a confirmatory test was the first such result for the employee on a drug or alcohol test or cannabis test requested by the employer unless the following conditions have been met:

(1) the employer has first given the employee an opportunity to participate in, at the employee’s own expense or pursuant to coverage under an employee benefit plan, either a drug, alcohol, or cannabis counseling or rehabilitation program, whichever is more appropriate, as determined by the employer after consultation with a certified chemical use counselor or a physician trained in the diagnosis and treatment of substance use disorder; and

(2) the employee has either refused to participate in the counseling or rehabilitation program or has failed to successfully complete the program, as evidenced by withdrawal from the program before its completion or by a positive test result on a confirmatory test after completion of the program.

Read the elements. The employee pays for the program, or an employee benefit plan does — this is not an employer-funded rehabilitation mandate. But the employer must offer the opportunity, and must determine which program is appropriate “after consultation with a certified chemical use counselor or a physician trained in the diagnosis and treatment of substance use disorder.” An employer that fires on a first confirmed positive without that consultation has skipped an express statutory element.

The employer is not stuck in the meantime. Paragraph (c) permits a temporary suspension or a transfer “to another position at the same rate of pay” pending the confirmatory test and any retest, “provided the employer believes that it is reasonably necessary to protect the health or safety of the employee, coemployees, or the public.” But: “An employee who has been suspended without pay must be reinstated with back pay if the outcome of the confirmatory test or requested confirmatory retest is negative.”

Two more limits in the same subdivision. Paragraph (d) bars adverse action based on medical history information revealed under subdivision 6 “unless the employee was under an affirmative duty to provide the information before, upon, or after hire.” Paragraph (e) gives the employee access to the personnel-file material generated by the testing process: “An employee must be given access to information in the employee’s personnel file relating to positive test result reports and other information acquired in the drug and alcohol testing process or cannabis testing process and conclusions drawn from and actions taken based on the reports or other acquired information.”

Confidentiality, and the criminal-case bar

Section 181.954 is short and consequential:

• Subd. 1: a laboratory “may only disclose to the employer test result data regarding the presence or absence of drugs, cannabis, alcohol, or their metabolites in a sample tested.”
• Subd. 2: test results and other information from the testing process are “private and confidential information” as to private-sector employees and “private data on individuals” as to public-sector employees, and “may not be disclosed by an employer or laboratory to another employer or to a third-party individual, governmental agency, or private organization without the written consent of the employee or job applicant tested.”
• Subd. 3: three exceptions — use in arbitration under a collective bargaining agreement, an administrative hearing, or a judicial proceeding if relevant; disclosure to a federal agency as required by federal law or contract; and disclosure to a substance abuse treatment facility for evaluation or treatment.
• Subd. 4: “Positive test results from an employer drug or alcohol testing or cannabis testing program may not be used as evidence in a criminal action against the employee or job applicant tested.”

Subdivision 2 is the one that gets violated casually — by a reference call, a staffing-agency handoff, or an incident report shared with a customer.

Remedies, exhaustion, and the six-year clock

Minn. Stat. § 181.956, subd. 2:

In addition to any other remedies provided by law, an employer or laboratory that violates sections 181.950 to 181.954 is liable to an employee or job applicant injured by the violation in a civil action for any damages allowable at law. If a violation is found and damages awarded, the court may also award reasonable attorney fees for a cause of action based on a violation of sections 181.950 to 181.954 if the court finds that the employer knowingly or recklessly violated sections 181.950 to 181.954.

Two points that change the economics. Damages are available for any violation — the statute does not require a discharge, and it does not require proof that the test was wrong. But fees require a finding that the violation was knowing or reckless, which is a real limitation and a reason the fee question gets litigated separately. That conditional fee-shift sits inside the broader Minnesota pattern we mapped here.

The rest of § 181.956: subdivision 1 requires an employee or collective bargaining agent to exhaust applicable grievance and arbitration procedures under a collective bargaining agreement first — though “an employee’s right to bring an action under this section is not affected by a decision of a collective bargaining agent not to pursue a grievance.” Subdivision 3 gives standing for injunctive relief to the employee or applicant, a state, county, or city attorney, or a qualifying collective bargaining agent. Subdivision 4 permits “any other equitable relief it considers appropriate, including ordering the injured employee or job applicant reinstated with back pay.” Subdivision 5 is an anti-retaliation provision in the same broad language the Legislature uses in the Whistleblower Act.

And the statutory protections are a floor, not a ceiling. Section 181.955, subd. 1, permits collective bargaining over a policy “that meets or exceeds, and does not otherwise conflict with, the minimum standards and requirements for employee protection provided in those sections,” and subdivision 2 preserves greater protections already in effect under existing agreements. That one-way ratchet is a recurring feature of Minnesota’s non-waivable statutes — see what you cannot agree to.

The limitations period is six years. Sipe v. STS Manufacturing, Inc., 834 N.W.2d 683 (Minn. 2013), held that a wrongful discharge claim under § 181.953, subd. 10, “was created by statute and was not recognized at common law,” so “it is subject to the six-year statute of limitations under section 541.05, subdivision 1(2), as a cause of action ‘upon a liability created by statute.’” Id. at 687. The court rejected the two-year period in § 541.07(1) because “section 541.07(1) is limited to common law causes of action not created by statute.” Id. at 686.

Six years is a long memory for a document nobody can find. That is the practical reason to keep the policy, the acknowledgment forms, and the notice records — the claim can arrive five years after the test.

Federal work is carved out, but only as far as federal law reaches

Minn. Stat. § 181.957, subd. 1, excludes employees and applicants whose specific work requires testing under federal regulations that preempt state regulation, federal requirements for operating federally regulated facilities, federal contracts where testing is for security or protection of sensitive data, or conforming state agency rules.

Subdivision 2 narrows the carve-out. Employers and laboratories must still comply with the Act as to those workers “to the extent that the provisions of sections 181.950 to 181.956 are not inconsistent with or specifically preempted by the federal regulations, contract, or requirements applicable to drug and alcohol testing.”

The Revisor also notes two holdings from Visnovec v. Yellow Freight System, Inc., 754 F. Supp. 142 (D. Minn. 1990): subdivision 9 of § 181.953 was found preempted by the federal Labor Management Relations Act as applied to collective bargaining agreements, and subdivision 10 was found preempted as applied to the physical qualifications for federal motor carrier drivers by federal motor carrier safety regulations.

A DOT-regulated driver is not outside the statute. That driver is outside the parts of the statute federal law displaces, and inside the rest.

What employers should actually do

1. Find the policy before you order the test. If there is no written policy meeting § 181.952, subd. 1, there is no authorized test — and the sample you collect is evidence of the violation, not of impairment.
2. Audit the policy against the six items, one at a time. Most non-compliant policies fail on items (3), (5), and (6): the right to refuse and the consequences, the right to explain and to pay for a retest, and the appeal procedures.
3. Keep the acknowledgment forms. Section 181.953, subd. 6(a), requires one before each request. Six years is the retention horizon.
4. Write your cannabis work rules into the policy or do not enforce them. Section 181.952, subd. 3(b), permits enforcement only through a written policy meeting the section’s minimums.
5. Decide, in advance and in writing, which positions are safety-sensitive. Random testing and the cannabis exceptions both depend on that classification, and it is the first thing that will be attacked.
6. Never fire on an unconfirmed screening test, and never fire on a first confirmed positive without documenting the rehabilitation offer and the consultation § 181.953, subd. 10(b)(1), requires.
7. Suspend with pay, or reinstate with back pay. Paragraph (c) permits suspension pending confirmation, and requires back pay if the result comes back negative.
8. Run the disclosure question through § 181.954, subd. 2, before you answer a reference call.

If you are the employee or applicant

• Ask for the policy in writing before you take the test, and keep what you are given.
• Note the dates. Three working days to explain a positive confirmatory result; five working days to give notice of a retest; three working days for the employer to notify you of results. These are the shortest clocks in the statute.
• You may request a copy of the test result report at any time. § 181.953, subd. 8.
• A first confirmed positive is not, standing alone, grounds for discharge under § 181.953, subd. 10(b).
• Do not assume a certified lab means a lawful test. The lab is one of two conditions in § 181.951, subd. 1(b). The policy is the other.

The observation

Most of the country regulates workplace testing by regulating the test — what may be screened for, at what threshold, by which laboratory. Minnesota did that too, in § 181.953. But the statute’s real design choice is upstream.

Minnesota decided that the employer must commit, in writing and in advance, to the circumstances in which it will test and the consequences it will impose — and then live with what it wrote. That is not a technicality. It is the difference between a rule and a discretion, and the Legislature took the discretion away.

The practical consequence is unusual. An employer with a mediocre laboratory and an excellent policy is in better shape than one with an excellent laboratory and no policy. The document is not the compliance paperwork for the decision. The document is the authority to make the decision at all.

Madgett Law, LLC advises Minnesota employers on drug, alcohol, and cannabis testing policies and represents employees and applicants in claims under Minn. Stat. §§ 181.950 to 181.957. If a test has already happened, the first question is not what the result was — it is what the policy said. Send us a message or call 612-470-6529.

Sources: Minn. Stat. § 181.950 (definitions — subd. 2, confirmatory test and confirmatory retest; subd. 4, drug; subd. 5, drug and alcohol testing; subd. 5a, cannabis testing; subd. 6, employee; subd. 7, employer; subd. 8, initial screening test; subd. 9, job applicant; subd. 9a, oral fluid test; subd. 10, positive test result; subd. 11, random selection basis; subd. 12, reasonable suspicion; subd. 13, safety-sensitive position); Minn. Stat. § 181.951 (subd. 1, limitations on testing; subd. 2, job applicant testing; subd. 3, routine physical examination testing; subd. 4, random testing; subd. 5, reasonable suspicion testing; subd. 6, treatment program testing; subd. 7, no legal duty to test; subd. 8, limitations on cannabis testing; subd. 9, cannabis testing exceptions); Minn. Stat. § 181.952 (subd. 1, contents of the policy; subd. 2, notice and posting; subd. 3, cannabis work rules); Minn. Stat. § 181.953 (subd. 1, laboratory criteria; subd. 3, laboratory testing, reporting, and six-month sample retention; subd. 4, prohibitions on employers and the cost rule; subd. 5, chain of custody; subd. 5a, oral fluid testing and the 48-hour no-cost laboratory test; subd. 6, rights of employees and job applicants; subd. 7, notice of test results; subd. 8, right to test result report; subd. 9, confirmatory retests at the employee’s own expense; subd. 10, limitations on discharge, discipline, or discrimination, including the first-positive rehabilitation requirement and the suspension and back-pay provision; subd. 10a, additional limitations for cannabis; subd. 11, limitation on withdrawal of job offer; and the Revisor’s notes recording the preemption holdings in Visnovec v. Yellow Freight System, Inc., 754 F. Supp. 142 (D. Minn. 1990)); Minn. Stat. § 181.954 (subds. 1–4, privacy, confidentiality, exceptions, and the criminal-action bar); Minn. Stat. § 181.955 (construction; collective bargaining; professional athletes); Minn. Stat. § 181.956 (subd. 1, exhaustion; subd. 2, damages and attorney fees on a knowing or reckless violation; subd. 3, injunctive relief and standing; subd. 4, other equitable relief; subd. 5, retaliation prohibited); Minn. Stat. § 181.957 (federal preemption; subd. 2, exclusion limited); Minn. Stat. § 541.05, subd. 1(2); Minn. Stat. § 541.07(1) — all from the Minnesota Office of the Revisor of Statutes. Sipe v. STS Manufacturing, Inc., 834 N.W.2d 683 (Minn. 2013) (docket No. A11-2082, decided July 31, 2013).

This article is general legal information about Minnesota law, not legal advice, and reading it does not create an attorney–client relationship. Collective bargaining agreements, federal regulations, and the specific position at issue can all change the analysis. No outcome is promised or implied.