Cannabis, jobs, and drug tests: the law by state
Legal to buy doesn’t always mean safe for your job. We read each state’s statute (or official guidance and court opinions) and summarised what it protects, what it doesn’t, and how it handles drug tests. We only list states we could tie to a primary source.
| State | Protection type | Main source | In short |
|---|---|---|---|
| Arizona | Medical patients only | A.R.S. § 36-2813 | Registered medical patients can’t be penalized for cardholder status or a positive test alone, unless they used, possessed, or were impaired at work. |
| Arkansas | Medical patients only | Ark. Const. Amend. 98, § 3(f)(3) | No discrimination based on qualifying-patient or caregiver status, but employers may test, act on a good-faith belief of on-the-job use, and exclude patients from safety-sensitive roles. |
| California | Off-duty use protected | Cal. Gov. Code § 12954 | Employers can’t discriminate over off-the-job, away-from-work use or over tests that only find nonpsychoactive metabolites; impairment-style tests are allowed. |
| Colorado | No statutory protection | Coats v. Dish Network, 2015 CO 44 | The Colorado Supreme Court held the lawful off-duty activities statute does not protect cannabis use, because it remains unlawful under federal law. |
| Connecticut | Off-duty use protected | Conn. Gen. Stat. §§ 21a-422p to 21a-422s | Non-exempt employers generally can’t refuse to hire or act on off-duty use or a positive THC test unless a written policy, federal rule, exempt role, or union contract applies. |
| Delaware | Medical patients only | 16 Del. C. § 4905A(a)(3) | Medical cardholders are protected against discrimination for status or a positive test, unless they used, possessed, or were impaired on the premises or during work hours. |
| Illinois | Off-duty use protected | 820 ILCS 55/5; 410 ILCS 705/10-50 | Off-duty use of lawful products is protected, but the Cannabis Regulation and Tax Act lets employers keep reasonable zero-tolerance and drug-testing policies. |
| Maine | Medical patients only | 22 M.R.S. § 2430-C(3); 28-B M.R.S. § 112 | Employers may not penalize qualifying medical patients or caregivers solely for that status; the adult-use law lets employers restrict use and discipline impairment at work. |
| Michigan | No statutory protection | MCL 333.27954(3) | The adult-use law states employers may refuse to hire, discipline, or fire for violating a workplace drug policy or working under the influence. |
| Minnesota | Off-duty use protected | Minn. Stat. §§ 181.938, 181.951 | Off-duty, off-premises cannabis use is protected, and most employers can’t require pre-employment cannabis tests or refuse to hire over a positive result alone. |
| Montana | Off-duty use protected | MCA 39-2-313 | Marijuana counts as a lawful product, so employers generally can’t refuse to hire or discriminate over legal off-premises use during nonworking hours. |
| Nevada | Hiring-stage protections only | NRS 613.132 | Employers can’t refuse to hire based on a pre-employment test showing marijuana, and new hires tested in their first 30 days may rebut with a second test. |
| New Jersey | Off-duty use protected | N.J.S.A. 24:6I-52 | No adverse action for using or not using cannabis or solely for a positive metabolite test; testing must pair a lab test with a physical evaluation by a trained expert. |
| New Mexico | Medical patients only | NMSA 1978 § 26-2B-9 | Adverse action based on conduct allowed under the medical program is unlawful, except for on-the-job use or impairment and safety-sensitive positions. |
| New York | Off-duty use protected | N.Y. Labor Law § 201-d; Cannabis Law § 42 | Lawful off-duty cannabis use is protected unless the employee shows specific, articulable symptoms of impairment at work or a federal requirement applies. |
| Ohio | No statutory protection | Ohio Rev. Code § 3796.28 | State law says nothing requires employers to accommodate marijuana and expressly allows refusing to hire or disciplining over its use. |
| Oklahoma | Medical patients only | 63 O.S. §§ 425, 427.8 | Licensed medical patients can’t be penalized solely for license status or a positive test, with exceptions for workplace use, written testing policies, and safety-sensitive jobs. |
| Pennsylvania | Medical patients only | 35 P.S. § 10231.2103(b) | Employers may not discriminate solely because someone is certified to use medical marijuana, but need not accommodate on-site use and may discipline impairment. |
| Rhode Island | Off-duty use protected | R.I. Gen. Laws § 21-28.11-29 | Employers can’t fire or discipline solely for private, lawful off-duty use, but may bar use and impairment at work and restrict hazardous-job workers before shifts. |
| Virginia | Medical patients only | Va. Code § 40.1-27.4 | No discharge, discipline, or discrimination for lawful use of cannabis oil under a practitioner’s written certification, with workplace and federal exceptions. |
| Washington | Hiring-stage protections only | RCW 49.44.240 | At the hiring stage only, employers can’t discriminate over off-duty use or over tests that detect nonpsychoactive metabolites, with safety-role exceptions. |
| Washington, D.C. | Hiring-stage protections only | D.C. Code § 32-931 | Most employers may test for marijuana only after a conditional job offer; broader employment protections passed in 2022 have not been funded. |
| West Virginia | Medical patients only | W. Va. Code § 16A-15-4(b) | Employers may not discriminate solely for status as certified to use medical cannabis, but need not accommodate on-site use and may discipline impairment. |
What the categories mean
- Off-duty use protected: State law limits adverse action over lawful, off-duty cannabis use, with exceptions. (California, Connecticut, Illinois, Minnesota, Montana, New Jersey, New York, Rhode Island)
- Hiring-stage protections only: State law limits some pre-employment testing or hiring decisions, but not discipline of current employees generally. (Nevada, Washington, Washington, D.C.)
- Medical patients only: Protections reach registered or certified medical cannabis patients, not adult-use consumers. (Arizona, Arkansas, Delaware, Maine, New Mexico, Oklahoma, Pennsylvania, Virginia, West Virginia)
- No statutory protection: State law expressly lets employers refuse to hire or discipline over cannabis use. (Colorado, Michigan, Ohio)
Federal rules override state protections
DOT-regulated workers (truck drivers, pilots, transit and rail staff, and others) are tested under federal rules. A Medical Review Officer must not verify a test as negative because of a state medical marijuana recommendation, and must not accept hemp or other non-prescription marijuana products as an explanation (49 CFR § 40.151 ↗). Federal workplace programs use the HHS Mandatory Guidelines for testing panels and cutoffs (Federal Register ↗).
For how long cannabis shows up on each test, see the drug testing guide. For whether cannabis is legal in a state at all, see the legalization map.
Common questions
Can I be fired for off-duty cannabis use?
It depends on the state. Of the 23 jurisdictions we have sourced, 8 have statutes limiting adverse action over lawful off-duty use (California, Connecticut, Illinois, Minnesota, Montana, New Jersey, New York, Rhode Island), each with exceptions. Others protect only at hiring or only medical patients, and some expressly allow discipline.
Does a medical card protect my job?
In some states. Arizona, Arkansas, Delaware, Maine, New Mexico, Oklahoma, Pennsylvania, Virginia, West Virginia have protections written for medical patients, but they typically exclude use, possession, or impairment at work, safety-sensitive roles, and situations where federal law or funding requires otherwise.
Do state protections apply to DOT or federal jobs?
No. Federal testing rules apply regardless of state law. For DOT-regulated employees, a Medical Review Officer may not verify a positive marijuana result as negative because of a state medical recommendation.
Coverage
Not yet covered (medical or adult-use states we have not sourced to a primary statute): Alabama, Alaska, Florida, Hawaii, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, North Dakota, Oregon, South Dakota, Utah, Vermont. A state missing here is not a signal that it has no rules — check the state’s code or labor department.