Medical Marijuana Laws by State

Medical marijuana laws by state vary drastically in their scope and implementation, including the regulation of dispensaries and the types of illnesses treated. Please write to your Senators and let them know how you feel.


Recreational and medical use


Medical use only


CBD only state


Currently still an illegal state


Montana Marijuana Laws

Legalization: This state has legalized marijuana for medical use.
Law: Initiative 148 – Passed in 2004 (Medical)
SB 423 – Passed on Apr. 28, 2011I-182 – Passed November 8, 2016

Possession: 1 ounce (oz) usable – 4 plants (mature) – 12 seedlings

Can you use other Legal State Cards: No

How The Law Reads:

Initiative 148 – Approved by 62% of voters on Nov. 2, 2004
Effective: Nov. 2, 2004

Approved Conditions: Cancer, glaucoma, or positive status for HIV/AIDS, or the treatment of these conditions; a chronic or debilitating disease or medical condition or its treatment that produces cachexia or wasting syndrome, severe or chronic pain, severe nausea, seizures, including seizures caused by epilepsy, or severe or persistent muscle spasms, including spasms caused by multiple sclerosis or Chrohn’s disease; or any other medical condition or treatment for a medical condition adopted by the department by rule.

Possession/CultivationA qualifying patient and a qualifying patient’s caregiver may each possess six marijuana plants and one ounce of usable marijuana. “Usable marijuana” means the dried leaves and flowers of marijuana and any mixture or preparation of marijuana.

Amended: SB 423 – Passed on Apr. 28, 2011 and transmitted to the Governor on May 3, 2011
Effective: July 1, 2011

SB 423 changes the application process to require a Montana driver’s license or state issued ID card. A second physician is required to confirm a chronic pain diagnosis.

“A provider or marijuana-infused products provider may assist a maximum of three registered cardholders…” and “may not accept anything of value, including monetary remuneration, for any services or products provided to a registered cardholder.”

Approved Conditions: Cancer, glaucoma, or positive status for HIV/AIDS when the condition or disease results in symptoms that seriously and adversely affect the patient’s health status; Cachexia or wasting syndrome; Severe, chronic pain that is persistent pain of severe intensity that significantly interferes with daily activities as documented by the patient’s treating physician; Intractable nausea or vomiting; Epilepsy or intractable seizure disorder; Multiple sclerosis; Chron’s Disease; Painful peripheral neuropathy; A central nervous system disorder resulting in chronic, painful spasticity or muscle spasms; Admittance into hospice care.

Possession/Cultivation: Amended to 12 seedlings (less than 12″), four mature flowering plants, and one ounce of usable marijuana.

On Nov. 6, 2012, Montana voters approved initiative referendum No. 124 by a vote of 56.5% to 43.5%, upholding SB 423.

Medical Marijuana Program
Montana Department of Health and Human Services
Licensure Bureau
2401 Colonial Drive, 2nd Floor
P.O. Box 202953
Helena, MT 59620-2953
Phone: 406-444-0596

MT Medical Marijuana Program