Medical Cannabis Purchase Limits & Availability

The standard amount certification issued by a provider for a patient identifies the quantity of dried flower and/or THC that the patient can purchase in a given 30-day period. 

The standard amount is 120 grams of dried flower or 36 grams of a THC product, however, a provider may certify a patient for more or less than the standard amount.  

The amount available for purchase is calculated on a rolling 30-day cycle. That is, the amount that a patient may purchase on any given day is calculated as the certified amount minus the total of all purchases made within the last 30 days. The 30-day cycle is not based on the calendar month. 

A patient may obtain medical cannabis from any licensed dispensary​ in Maryland. The patient's certification will be recorded in the MCA's database and can be confirmed by any licensed dispensary. An MCA-issued ID card is not needed to purchase medical cannabis, however, government-issued identification is still required.

The sale of dried cannabis flower is measured by weight in grams. 

The sale of processed cannabis products, such as oils, pills or lotions, is measured by the amount of THC contained in the product. The unit of measure is grams. Independent testing laboratories determine the precise THC content in each processed product. 

There are two limits identified on a certification: One for dried flower and one for THC in processed products. These limits are a combined limit, not two individual limits. That is, a patient may purchase the limit of dried flower OR the limit of THC in processed products in a 30-day period, not both. 

If a patient purchases both dried flower and processed product within a 30-day period, the total amount of dried flower and THC available to purchase is reduced by the percentage of product already purchased.  For example, if a patient has purchased 50% of his limit of dried flower and 15% of his limit of THC, then he has purchased 65% of his limit (50 + 15 = 65). Therefore, the patient can purchase 35% of either the dried flower limit, or the THC limit.