An Act to prohibit smoking and consuming marijuana and its derivatives in a motor vehicle and create a penalty therefor.

Be it enacted by the Legislature of the State of South Dakota:

Section 1. That a NEW SECTION be added:

22-42-24. Driver--Use of marijuana--Motor vehicle--Misdemeanor.

While a motor vehicle is located upon a public highway or the right-of-way of a public highway, it is a Class 2 misdemeanor if any person occupying, operating, or in actual physical control of a motor vehicle smokes or consumes marijuana or marijuana concentrate while the vehicle is being operated. For purposes of this section and § 22-42-25, marijuana concentrate is the resin extracted from any part of a marijuana plant and every compound, manufacture, salt, derivative, mixture, or preparation from such resin.

Section 2. That a NEW SECTION be added:

22-42-25. Passenger--Use of marijuana--Motor vehicle--Misdemeanor.

While a motor vehicle is located upon a public highway or the right-of-way of a public highway, it is a Class 2 misdemeanor if any person occupying a motor vehicle smokes marijuana or marijuana concentrate while the vehicle is being operated.

Section 3. That § 34-20G-18 be AMENDED.

34-20G-18. [Effective July 1, 2021] Unauthorized conduct.

This chapter does not authorize any person to engage in, and does not prevent the imposition of any civil, criminal, or other penalty for engaging in, the following conduct:

(1) Undertaking any task under the influence of cannabis, when doing so would constitute negligence or professional malpractice;

(2) Possessing cannabis or otherwise engaging in the medical use of cannabis in any correctional facility;

(3) Smoking cannabis or cannabis products:

(a) On any form of public transportation; or

(b) In any public place or any place that is open to the public; or

(c) In violation of § 22-42-24.

(4) Operating, navigating, or being in actual physical control of any motor vehicle, aircraft, train, or motorboat while under the influence of cannabis, except that a registered qualifying patient or nonresident cardholder is not considered to be under the influence of cannabis solely because of the presence of metabolites or components of cannabis that appear in insufficient concentration to cause impairment.