Cannabis Drug Testing Laws in South Dakota
South Dakota has a medical cannabis program with limited employment protections.
Overview
South Dakota voters approved medical cannabis in 2020. The recreational amendment passed the same year was struck down by the state supreme court. The medical program includes limited employment anti-discrimination provisions.
| State | South Dakota (SD) |
| Legal Status | Medical Only |
| Workplace Protection | Medical Only |
| Protection Summary | Limited. |
| DUI Threshold | Impairment-based DUI. |
| Synthetic Urine Law | Not specifically criminalized. |
Key Statutes
- SDCL § 34-20G (Medical Marijuana)
South Dakota Cannabis Context
South Dakota has an unusual cannabis history. In 2020, voters approved both Amendment A (recreational legalization, by ballot initiative) and Initiated Measure 26 (medical cannabis). However, the state Supreme Court struck down Amendment A on procedural single-subject grounds, leaving only the medical cannabis program in place. The medical program (SDCL § 34-20G) provides patient access for qualifying conditions and includes some limited employment protections.
South Dakota voters approved a second recreational legalization initiative in 2022, but it was rejected. As of 2026, recreational cannabis remains prohibited under state law. The medical program is operational, with licensed dispensaries serving registered patients. The state has not enacted comprehensive synthetic urine criminalization. South Dakota uses impairment-based DUI rather than zero-tolerance per se.
South Dakota's economy includes significant agriculture, healthcare (Sanford Health and Avera Health are major employers), tourism (Mount Rushmore, Black Hills, Sturgis Motorcycle Rally), and Ellsworth Air Force Base. The federal facility presence creates limited but real federal employment categories. The state's small population (around 900,000) means that the cannabis policy environment affects fewer total workers than in larger states, but the Native American tribal lands within the state operate under different rules — the Flandreau Santee Sioux Tribe operates a cannabis program on tribal land that provides patient access independent of state law. For South Dakota workers, the medical cardholder pathway provides limited protection; recreational users have no statutory framework. Total abstinence remains the safest approach for any worker facing employer testing.
What This Means for You
South Dakota provides employment protections for registered medical cannabis cardholders only. Recreational users have no statutory protection. If you are a medical patient, ensure your registration is current and consider the interactive accommodation process if your employer raises concerns.