Patients ask how the card affects a job, a car, a lease, a school and an insurance plan. This page gives each topic what the Commission and the law say, and says plainly where they say nothing. For a question about your own job or lease, ask a lawyer.
Work
The Commission says an employer may restrict the consumption of marijuana in the workplace(masscannabiscontrol.com).
Driving
In Massachusetts, the medical marijuana law does not amend existing penalties for operating a motor vehicle while impaired by marijuana or a marijuana product(state law).
Treatment centers must warn patients that when under the influence of marijuana, driving is prohibited and machinery should not be operated(state regulation).
The open container rule is written for adult-use marijuana: the Commission says you may not have an open container in the passenger area of your car while on the road or at a place where the public has access(masscannabiscontrol.com).
The Commission says the passenger area does not include a trunk or a locked glove compartment(masscannabiscontrol.com).
Rented housing
The Commission says landlords, hotels, and other rental properties may have their own rules, so check with them to see what is allowed(masscannabiscontrol.com).
Public places
The Commission says it is illegal to consume cannabis in any form in public or on federal land(masscannabiscontrol.com).
School and college
For a school, a dorm or a campus, ask the school's housing or student office and read the student handbook.
Insurance
The state medical marijuana law does not require any health insurance provider, or any government agency or authority, to reimburse any person for the expenses of the medical use of marijuana(state law).
Sources: Commission FAQs and M.G.L. c. 94I section 6, read November 5, 2026.| Topic | What the Commission or the law says | Where to ask |
|---|
| Work | An employer may restrict consumption in the workplace | Your employer or a lawyer |
| Driving | Existing penalties for impaired driving are not changed | Your certifying provider and the law |
| Rented housing | Landlords may have their own rules | Your landlord or lease |
| Public places | Illegal to consume cannabis in public or on federal land | Not applicable |
| School | Not covered on the pages read | The school's student office |
| Insurance | No requirement to reimburse medical use expenses | Your insurer |
Short answers
Can an employer ban use at work?
The Commission says an employer may restrict the consumption of marijuana in the workplace(masscannabiscontrol.com).
Can I keep it in the car?
For adult-use marijuana, the Commission says the passenger area does not include a trunk or a locked glove compartment(masscannabiscontrol.com).
Can a hotel or rental set its own rules?
Yes. The Commission says landlords, hotels, and other rental properties may have their own rules(masscannabiscontrol.com).
Does the law make my insurer pay?
No. The state medical marijuana law does not require any health insurance provider, or any government agency or authority, to reimburse any person for the expenses of the medical use of marijuana(state law).
Advanced Dispensary in Peabody
Advanced Dispensary in Peabody is being built and has no opening date.
Sources
- "Cannabis Control Commission, Frequently Asked Questions" (masscannabiscontrol.com, read November 5, 2026): "An employer may restrict the consumption of marijuana in the workplace."
- "M.G.L. c. 94I, section 6 (limitations on effect of chapter)" (malegislature.gov, read November 5, 2026): "amend existing penalties for operating, navigating or being in actual physical control of any motor vehicle, train, aircraft, motorboat or other motorized form of transport or machinery while impaired by marijuana or a marijuana product"
- "935 CMR 501.140, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "A warning that when under the influence of Marijuana, driving is prohibited by M.G.L. c. 90, § 24, and machinery should not be operated"
- "Cannabis Control Commission, Frequently Asked Questions" (masscannabiscontrol.com, read November 5, 2026): "you may not have an open container of adult-use marijuana/marijuana products in the passenger area of your car while on the road or at a place where the public has access"
- "Cannabis Control Commission, Frequently Asked Questions" (masscannabiscontrol.com, read November 5, 2026): "The 'passenger area' does not include a trunk or a locked glove compartment."
- "Cannabis Control Commission, Frequently Asked Questions" (masscannabiscontrol.com, read November 5, 2026): "Landlords, hotels, and other rental properties may have their own rules. Check with them to see what is allowed."
- "Cannabis Control Commission, Frequently Asked Questions" (masscannabiscontrol.com, read November 5, 2026): "It is illegal to consume cannabis in any form - smoking, vaping, eating, or otherwise - in public, on federal land"
- "M.G.L. c. 94I, section 6 (limitations on effect of chapter)" (malegislature.gov, read November 5, 2026): "require any health insurance provider, or any government agency or authority, to reimburse any person for the expenses of the medical use of marijuana"