Rolling 30-Day Period For Medical Marijuana
Cardholders Explained
Cardholders Explained

A Patient’s Guide to Staying Compliant in Montana from Frosteez Dispensary MT
Rolling 30-Day Period For Medical Marijuana Cardholders Explained: Beginning March 1, 2022, monthly purchase limits will be determined based on a rolling 30-day period rather than on a calendar month. This means that monthly purchase limits will not reset to the full amount on the first of the month, but will instead be based on the last 30 days of purchase history.
For example: if a cardholder purchased one ounce of marijuana on March 1, March 5, March 10, March 15, and March 20, they will have reached the monthly purchase limit of five ounces of marijuana. On March 31, rather than resetting the entire monthly purchase limit of five ounces, the cardholder would only be eligible to purchase one ounce. On April 4, they would be eligible to purchase an additional ounce, and again on April 9, and so on.
Please note: this change only concerns monthly purchase limits for medical marijuana sales only. Adults age 21+ who purchase adult use marijuana at the recreational tax rate are not subject to the monthly purchase limits of the medical marijuana program.
The amount a cardholder can purchase in a day is determined by formula, using the following categories:
Amount Certified (AC)
- 5 ounces (8 ounces with an approved physician’s petition)
Amount Purchased (AP)
- Total amount purchased in the last 30 days
Amount Available to Purchase (AA)
- The difference between Amount Certified and Amount Purchased
- AC – AP = AA
- Amount Certified (AC) – Amount Purchased within the last 30 Days (AP) = Amount available to purchase (AA)
Visit Frosteez – Montana Cannabis Experts
At Frosteez, we’re not just here to sell cannabis—we’re here to help you enjoy it to the fullest. With five convenient locations across Montana, we offer premium cannabis products and the guidance you need to make the most of them:
Frosteez Dispensary Locations (All Open 9:00 AM – 7:55 PM, 7 Days a Week):
- Frosteez Dispensary Billings, MT
5055 Jellison Rd. Bldg. 3
Billings, MT 59101
406.252.3569 - Frosteez Dispensary Great Falls, MT
183 Black Eagle Road
Great Falls, MT 59404
406.315.5960 - Frosteez Dispensary Laurel, MT
3150 Shannon Road
Laurel, MT 59044
406.530.4209 - Frosteez Dispensary Lockwood, MT
3205 N. Frontage Rd.
Lockwood, MT 59101
406.855.9028 - Frosteez Dispensary Missoula, MT
1275 W. Broadway
Missoula, MT 59802
406.493.1279