SDCL § 32-14-17: Multi-passenger quadricycle--Definition.

For the purposes of this chapter, the term "multi-passenger quadricycle" means a vehicle equipped with fully operative pedals for propulsion by means of human muscular power exclusively. The vehicle must be:

(1) Equipped with at least four wheels and is operated in a manner similar to a bicycle;

(2) Equipped with at least five seats for passengers;

(3) Designed to be operated by a driver, who may use an assist-motor capable of propelling the vehicle in conjunction with human muscular power;

(4) Operated for commercial purposes within a municipality;

(5) Equipped with a steering wheel that gives the driver exclusive control of the direction of the vehicle;

(6) Equipped with at least one tail lamp in accordance with § 32-17-12;

(7) Equipped with at least one stop lamp in accordance with § 32-17-8.1;

(8) Equipped with at least two headlamps with one on each side of the front of the vehicle; and

(9) Equipped with a rear vision mirror in accordance with § 32-15-8.