SDCL § 32-23-1: Driving or control of vehicle prohibited with alcohol in blood or while under influence of alcohol, drug, or intoxicant.

No person may drive or be in actual physical control of any vehicle while:

(1) There is 0.08 percent or more by weight of alcohol in that person's blood as shown by chemical analysis of that person's breath, blood, or other bodily substance;

(2) Under the influence of an alcoholic beverage, marijuana, or any controlled drug or substance not obtained pursuant to a valid prescription, or any combination of an alcoholic beverage, marijuana, or such controlled drug or substance;

(3) Under the influence of any controlled drug or substance obtained pursuant to a valid prescription, or any other substance, to a degree which renders the person incapable of safely driving;

(4) Under the combined influence of an alcoholic beverage and or any controlled drug or substance obtained pursuant to a valid prescription, or any other substance, to a degree which renders the person incapable of safely driving; or

(5) Under the influence of any substance ingested, inhaled, or otherwise taken into the body as prohibited by § 22-42-15.