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South Dakota Department of Health
South Dakota Department of Health

Medical Cannabis Purchase Limits

Purchase Limits in South Dakota

South Dakota utilizes a rolling limit that allows for the purchase of three ounces of flower over 14 days. The 14-day rolling limit is tracked when medical cannabis is physically dispensed to a Patient or Caregiver. The amounts purchased are subtracted from the three-ounce total. Once 14 days have elapsed from the date of a purchase, that specific purchase amount is added back to the three-ounce limit. This same process applies to each purchase made by the Patient or Caregiver. For an example of how rolling limits work, see below.

Date Amount Available at the Beginning of the Day Total Purchased Amount Available at the End of the Day Replenish Date
9/1 3 Ounces 0.5 Ounce 2.5 Ounces 9/15
9/3 2.5 Ounces 1 Ounce 1.5 Ounces 9/17
9/10 1.5 Ounces 1 Ounce 0.5 Ounce 9/24
9/15 1 Ounce 1 Ounce 0 Ounce 9/29


In the table example above, the purchase and 14-day rolling limit work as follows:

  • 9/1 purchase of 0.5 ounce: This amount is deducted from the patient’s three-ounce allotment. If no other purchases are made in 14 days, the 0.5 ounce will be added back 14 days later, or on 9/15, to bring their limit back to 3 ounces.
  • 9/3 purchase of 1.0 ounce: Since this purchase was made within the initial 14-day rolling limit, it is also deducted from the patient’s three-ounce rolling allotment (limit), bringing the new
    remaining available total to 1.5 ounces.
  • 9/10 purchase of 1.0 ounce: Since this purchase was made within the initial 14-day allotment and does not exceed the limit, it is deducted from the patient’s three-ounce limit, bringing the new remaining available total to 0.5 ounces.
  • In this case, the patient wishes to purchase another ounce before 9/15; however, only 0.5
    ounces remain available. This means the patient must wait until the 0.5 ounce from their first
    purchase on 9/1 is added back to their 14-day rolling limit on 9/15, which is why the patient was
    able to make the 1-ounce purchase on that date.

Contact us with questions at MCQuestions@state.sd.us. 

Content last updated: April 29, 2026. For questions, contact: