Adult-use age
Adults must be 21 or older and present government-issued identification.
Updated September 2026
Maryland Cannabis Rules, Clearly Explained
A plain-language summary for adults shopping in Columbia, sourced from the Maryland Cannabis Administration, current Maryland law, and state tax guidance.
Flower limit
Maryland’s personal-use amount includes up to 1.5 ounces of cannabis flower.
Concentrate limit
Adults may possess up to 12 grams of concentrated cannabis.
THC product limit
The personal-use amount for cannabis products is a total not exceeding 750 mg THC.
Adult-use tax
Maryland law sets the adult-use cannabis sales and use tax at 12% for fiscal year 2026 and after.
Medical sales tax
Sales of medical cannabis to qualifying patients are exempt from Maryland sales and use tax.
Where use is prohibited
Public spaces remain smoke-free
Maryland does not permit cannabis smoking in indoor or outdoor public spaces. That includes streets, sidewalks, parks, playgrounds, bars, restaurants, public transportation, and moving vehicles. A place allowing tobacco smoking is not automatically a legal place to smoke cannabis.
Private property rules still apply. Leases, landlords, homeowners associations, and employers can impose additional restrictions.
Maryland smoke-free spaces guidanceAt home
Store it like someone else’s safety depends on it
Original packaging
Keep the warning label and child-resistant packaging with the product.
Locked and out of sight
Use a lockbox or locked storage away from children, teens, visitors, and pets.
No interstate transport
Cannabis cannot cross state lines, even when the destination also allows adult use.
Know who to call
For suspected child ingestion, Maryland directs residents to the Poison Center at 800-222-1222 or emergency care.
Source desk
Read the rules directly
Quick answers
Frequently Asked Questions
How much cannabis can an adult possess in Maryland?
An adult 21 or older may possess up to 1.5 ounces of flower, 12 grams of concentrated cannabis, or cannabis products totaling no more than 750 mg THC.
What is Maryland’s adult-use cannabis tax in 2026?
The current Maryland sales and use tax rate for adult-use cannabis is 12%.
Is medical cannabis taxed in Maryland?
No. Sales of medical cannabis to qualifying patients and caregivers are exempt from Maryland sales and use tax.
Can I smoke cannabis in a Columbia park?
No. Maryland prohibits cannabis smoking in indoor and outdoor public spaces, including parks and sidewalks.
Can I take cannabis from Maryland into another state?
No. Interstate transport remains prohibited under federal law, even when the destination permits cannabis.
Local store connection
Remedy Columbia
8865 Stanford Boulevard, Suite 131, Columbia, MD 21045
(443) 542-0948
Open daily, 9:00 AM to 11:00 PM. Lobby doors close at 10:45 PM.