Montana Medical Marijuana Card

Montana medical marijuana patients can possess up to 1 ounce of usable marijuana at any time and may purchase up to 5 ounces per 30-day rolling period. Patients who home cultivate may possess the harvest from up to 4 mature and 4 seedling plants.

Recreational users have the same 1-ounce public possession limit. Medical patients benefit from the higher 5-ounce monthly purchase allowance and the ability to grow more plants at home. All cannabis must be stored securely at the patient's registered address.

Possession limits per Montana Code Annotated §16-12-106 and CARD administrative rules.

Yes, Montana medical marijuana patients can cultivate up to 4 mature plants and 4 seedlings at their registered residence. Recreational adults can also grow up to 2 mature plants and 2 seedlings. Home cultivation must occur in an enclosed, locked space not visible to the public.

Medical patients receive double the plant count compared to recreational growers. All home-grown cannabis must be for personal use only and cannot be sold or distributed. Local municipalities may impose additional restrictions.

Home cultivation per Montana Code Annotated §16-12-106.

Montana has a per se DUI limit of 5 nanograms of THC per milliliter of blood. Drivers exceeding this threshold face criminal DUI charges regardless of observed impairment. Both medical and recreational users are subject to the same standard — a medical card provides no exemption from DUI enforcement.

Montana is one of several states with a codified THC blood limit. Patients should be aware that THC can remain in the bloodstream for hours after consumption. Plan transportation accordingly after using any cannabis product.

Per se THC DUI limit per Montana Code Annotated §61-8-1002.

Montana counties that approved Initiative 190 (recreational legalization) are "green" counties where recreational dispensaries can operate. Counties that voted against it are "red" counties where only medical marijuana sales are permitted. Medical cardholders can purchase cannabis in both green and red counties.

This county-level distinction makes a medical card especially valuable for patients in red counties, where recreational sales are prohibited. Approximately one-third of Montana counties are classified as red. Medical dispensaries serve patients statewide regardless of county vote outcomes.

County opt-in/opt-out provisions per Initiative 190 and Montana Code Annotated §16-12-301.

Montana provides limited employment protections for medical marijuana cardholders under MCA §39-2-313. Employers cannot discriminate against registered patients solely for their cardholder status. However, employers may still enforce drug-free workplace policies and restrict impairment during work hours.

Unlike some states, Montana explicitly addresses medical marijuana in its employment code. Patients should disclose their status to HR if workplace drug testing is required. Safety-sensitive positions and federal contractors may have additional restrictions.

Employment protections per Montana Code Annotated §39-2-313.

Montana medical card renewals through MMJ.com cost $149.99 and follow the same telehealth process as initial certifications. Patients should begin their renewal within 60 days of expiration to maintain continuous access to medical pricing and dispensary eligibility in red counties.

MMJ.com sends email reminders before your card expires. Do not let your card lapse — expired cardholders in red counties lose dispensary access entirely, and those in green counties pay the full 20% recreational tax until renewal is complete.

Renewal process per CARD administrative rules and MCA §16-12-530.