Drug Testing Laws in South Dakota

State law (South Dakota): No employer is required to allow the ingestion, possession, transfer, display or transportation of cannabis in any workplace, or to allow any employee to work while under the influence Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026. Nothing in the chapter requires cost reimbursement or accommodation of medical cannabis use Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

State law (South Dakota): Employers may discipline an employee for ingesting cannabis in the workplace or for working while under the influence of cannabis Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

Employer policy: We did not identify a South Dakota statute setting general testing procedure — laboratory standards, confirmation, notice or retest rights. Those come from the employer's written policy, so it is the document to ask for.

State law (South Dakota): The core provision is an equivalence: a registered qualifying patient must be afforded the same rights under state and local law, in respect of employer interactions and drug testing, as the person would be afforded if solely prescribed a pharmaceutical medication Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

That is a different technique from most states here. Delaware lists what an employer may not do; South Dakota says treat it like any other prescription and let the ordinary rules follow. Whether that turns out broader or narrower in practice depends on how those ordinary rules are applied — which is precisely why it is a question for a South Dakota employment lawyer rather than a page like this one.

State law (South Dakota): The exception is role-based: adverse action based SOLELY on a positive cannabis metabolite test is permitted where the employee works in a safety-sensitive job — a position in which tasks could cause illness, injury, death or serious property damage Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

State law (South Dakota): The safety-sensitive definition is worth reading against the others on this hub. South Dakota's reaches tasks that could cause illness, injury, death OR serious property damage Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

Washington's equivalent is narrower — impairment presenting a substantial risk of DEATH. Nevada's is broader and softer — whatever the employer determines could adversely affect the safety of others. South Dakota sits between them, and including property damage widens it considerably: a role need not endanger anyone to qualify.

State law (South Dakota): The protections do not apply to the extent they conflict with an employer's obligations under federal law or regulation, or to the extent they would disqualify the employer from a monetary or licensing-related benefit under federal law Source 1State legislatureS.D. Codified Laws ch. 34-20G — medical cannabis; employment provisions — checked 18 Aug 2026.

Federal (DOT): A DOT-regulated test is unaffected. Marijuana is on the federal panel, a registry card is not a legitimate medical explanation for a federal positive, and the pharmaceutical-equivalence framing does not cross into that programme.