From South Dakota Codified Laws:
SDCL § 32-15-2.1. Laminated glass required for windshield--Position--Minimum height--
Exemption
Every motor vehicle shall be equipped with an approved laminated safety glass windshield. The
windshield shall be in such position that it affords continuous horizontal frontal protection to
the driver and front seat occupants. The minimum vertical height of the unobstructed
windshield glass shall be six inches. The provisions of this section do not apply to a motor
vehicle manufactured prior to July 1, 1953, if the driver of the motor vehicle is wearing an eye
protective device.
SDCL § 32-17-8. Rear lamps required--Visibility--Combination of vehicles--Height of mounting-
-Violation as petty offense
Every motor vehicle, trailer, semitrailer, and pole trailer, except as otherwise provided in this
section, and any other vehicle which is being drawn at the end of a combination of vehicles
shall be equipped with at least two tail lamps mounted on the rear, which when lighted as
required in § 32-17-4 shall emit a red light plainly visible from a distance of one thousand feet
to the rear. However, motor vehicles, trailers, semitrailers, and pole trailers manufactured and
assembled prior to July 1, 1973, shall have one tail lamp mounted on the left side of the rear
which when lighted as required in § 32-17-4 shall emit a red light plainly visible from a distance
of five hundred feet to the rear. Motorcycles and motor driven cycles, except mopeds as
defined in § 32-20-1, shall have at least one tail lamp, which when lighted as required in § 32-
17-4 shall emit a red light plainly visible from a distance of five hundred feet to the rear.
Mopeds shall have at least one tail lamp which when lighted as required in § 32-17-4 shall emit
a red light plainly visible from a distance of two hundred and fifty feet to the rear. Farm vehicles
which are being drawn at the end of a train of vehicles may be equipped with two four-inch
reflectors in lieu of lighted lamps as provided in this section so as to exhibit a red light plainly
visible from a distance of five hundred feet to the rear. On a combination of vehicles, only the
tail lamps on the rearmost vehicle need actually be seen from the distance specified. On
vehicles with more than one tail lamp, the lamps shall be mounted on the same level and as
widely spaced laterally as practicable. Every tail lamp upon every vehicle shall be located at a
height of not more than seventy-two inches nor less than fifteen inches. A violation of this
section is a petty offense.
SDCL § 32-17-8.1. Stop lamps required--Mounting--Visibility--Violation as petty offense
Except for a vehicle equipped with a slow-moving vehicle emblem in compliance with §§ 32-15-
20 and 32-15-21, each motor vehicle, trailer, semitrailer, and pole trailer shall be equipped with
at least two stop lamps with at least one on each side. The side stop lamps shall be mounted on
the same level and as widely spaced laterally as practicable. However, each motor vehicle,
trailer, semitrailer, and pole trailer manufactured and assembled before July 1, 1973, and each
motorcycle and motor-driven cycle shall be equipped with at least one stop lamp. A stop lamp
shall be mounted on the rear of the vehicle at a height of no more than seventy inches nor less
than fifteen inches. Each stop lamp shall display a red light visible from a distance of not less
than three hundred feet to the rear in normal sunlight, except for a moped, which shall be
visible from a distance of not less than one hundred fifty feet. Each stop lamp shall be actuated
upon application of the brake which may be incorporated with one or more rear lamps. A
violation of this section is a petty offense.
SDCL § 32-38-1. Use required--Public highways--Front seat passenger
Except as provided in chapter 32-37 and § 32-38-3, every operator and front seat passenger of
a passenger vehicle operated on a public highway in this state shall wear a properly adjusted
and fastened safety seat belt system, required to be installed in the passenger vehicle when
manufactured pursuant to Federal Motor Vehicle Safety Standard Number 208 (49 C.F.R.
571.208) in effect January 1, 1989, at all times when the vehicle is in forward motion. The driver
of the passenger vehicle shall secure or cause to be secured a properly adjusted and fastened
safety seat belt system on any passenger in the front seat who is at least five years of age but
younger than eighteen years of age. Any violation of this section is not a moving traffic offense
under the provisions of § 32-12-49.1.
SDCL 2-38-3. Exceptions to required use of safety belts
The provisions of § 32-38-1 do not apply to:
(1) Any occupant of a passenger vehicle manufactured before September 1, 1973;