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Maine drug testing laws for employers
Maine has one of the strictest testing laws in the country: you need a written policy approved by the Maine Department of Labor before you test anyone. A 2026 rewrite (Public Law 2025, chapter 666, in effect July 29, 2026) switched employee testing to a reasonable suspicion standard, renamed 'arbitrary' testing 'criteria-based', and now requires a medical review officer. Adult-use cannabis is legal, but employers may still ban use and impairment at work.
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The state law
- You may not test any applicant or employee until the Maine Department of Labor approves your written testing policy, and any change also needs approval first (26 M.R.S. 683(2)).
- The written policy must cover who is tested, the drugs tested for, cutoff levels, sample collection and chain of custody, consequences of a positive or a refusal, rehabilitation and a free appeal process (26 M.R.S. 683(2)).
- You must consult your employees on the parts of the policy that apply to them (26 M.R.S. 683(2)).
- Employees must get the approved policy at least 30 days before it applies to them, and 60 days before any approved change (26 M.R.S. 683(3)).
- If you have more than 20 full-time employees, you must have a working employee assistance program before you test employees (26 M.R.S. 683(1)).
- Samples must be collected at a medical facility supervised by a licensed physician or nurse (a work-site first aid station counts), with no observed collection and no undressing (26 M.R.S. 683(2)(C)).
- Only a medical review officer may report a confirmed positive to you, after giving the person a chance to give a legitimate medical explanation (26 M.R.S. 683(7-A), (8)(B-1), (8)(E)).
- You pay for every test you require, and you must send the Department of Labor a yearly summary of results (26 M.R.S. 683(8)(D), (9)).
- Before acting on a first confirmed positive, you must offer the employee up to 12 weeks in a rehabilitation program (26 M.R.S. 685(2)(B)).
- Violations can cost three times lost wages, reinstatement and attorney's fees, plus civil penalties for confidentiality breaches (26 M.R.S. 689).
- An employer with at least one federally mandated tested employee in Maine is outside this law, but must test its other workers under the same federal rules (26 M.R.S. 681(8)(C)).
Testing applicants
- You may test an applicant only after you offer the job, or a place on a hiring roster no larger than your last 6 months of hires (26 M.R.S. 684(1)).
- You must give the applicant a copy of your approved policy before the test (26 M.R.S. 683(3)).
- You may not ask applicants or employees to sign a form releasing you from liability or waiving their rights under this law (26 M.R.S. 683(4)).
Random testing
- Random or criteria-based testing is allowed only under a union contract, for jobs where impairment would be an unreasonable safety threat, or in an all-employee program (26 M.R.S. 684(3)).
- An all-employee random program needs 50 or more non-union employees or a contract that requires testing, Department of Labor approval, and selection by someone outside your influence from an anonymous list (26 M.R.S. 684(3)(C)).
- Employees may be tested for cause only when a supervisor, nurse, physician or security staff has reasonable suspicion from observable behavior and gives the employee the written facts before the test (26 M.R.S. 684(2)).
- A single work accident is not reasonable suspicion unless the worker also shows signs of impairment (26 M.R.S. 682(6)(C)).
Marijuana (recreational)
- You do not have to allow cannabis in the workplace, and you may enforce policies against use at work and discipline workers who are under the influence on the job (28-B M.R.S. 112).
- You may not refuse to hire or otherwise penalize someone solely for being a registered medical cannabis patient or caregiver, unless federal law or a federal contract or funding requires it (22 M.R.S. 2430-C(3)).
- Legal medical cannabis use counts as a legitimate medical explanation, so the MRO reports it as a positive with a legitimate medical explanation (26 M.R.S. 682(3-B), 683(8)(B-1)).
- Confirmation cutoffs for cannabis in urine may not be lower than 15 ng/mL of THC-COOH (26 M.R.S. 683(2)(G)(1)).
- Any action on a positive is subject to Maine's laws on medical cannabis (26 M.R.S. 685(2)(A)).
Also good to know
- Instant (point-of-collection) urine or saliva screens are allowed, but a non-negative result must go to a qualified lab for confirmation before you can be told about it (26 M.R.S. 682(7)(A)(1), 683(5-A)).
- Employees may ask for part of the sample to be set aside for their own lab test, and may ask for a blood test for alcohol or cannabis instead of urine (26 M.R.S. 683(5)).
- Intoxication or use of illegal drugs on duty is presumed misconduct that can deny unemployment benefits, except lawful medical cannabis use (26 M.R.S. 1043(23)(A)(6)-(7)).
- Cities and towns may not pass their own testing rules (26 M.R.S. 681(4)).
Common questions
Is drug testing legal for employers in Maine?
Maine has one of the strictest testing laws in the country: you need a written policy approved by the Maine Department of Labor before you test anyone. A 2026 rewrite (Public Law 2025, chapter 666, in effect July 29, 2026) switched employee testing to a reasonable suspicion standard, renamed 'arbitrary' testing 'criteria-based', and now requires a medical review officer. Adult-use cannabis is legal, but employers may still ban use and impairment at work.
Can employers in Maine test applicants before hiring?
You may test an applicant only after you offer the job, or a place on a hiring roster no larger than your last 6 months of hires (26 M.R.S. 684(1)).
Is random drug testing allowed in Maine?
Random or criteria-based testing is allowed only under a union contract, for jobs where impairment would be an unreasonable safety threat, or in an all-employee program (26 M.R.S. 684(3)).
Can a Maine employer act on a positive marijuana test?
You do not have to allow cannabis in the workplace, and you may enforce policies against use at work and discipline workers who are under the influence on the job (28-B M.R.S. 112).
Some rules for Maine weren't confirmed from an official source. Check with the state before relying on this page.
Sources
- 26 M.R.S. 681 (official)
- 26 M.R.S. 682 (official)
- 26 M.R.S. 683 (official)
- 26 M.R.S. 684 (official)
- 26 M.R.S. 685 (official)
- 26 M.R.S. 686 (official)
- 26 M.R.S. 689 (official)
- 26 M.R.S. 1043 (official)
- 28-B M.R.S. 112 (official)
- 22 M.R.S. 2430-C (official)
- Public Law 2025, chapter 666 (LD 2110), approved April 13, 2026 (Maine DOL copy)
- Labor Committee law summary, LD 2110 (Maine Legislature)
- 132nd Legislature 2nd session laws summary: non-emergency effective date July 29, 2026 (Maine Legislature)
This page summarizes state law in plain words, with links to the law itself. It is not legal advice, and laws change: check the linked source, and talk to a lawyer about your own policy. Federal DOT testing rules are separate and override state limits for DOT-covered jobs. Checked October 2026.