South Dakota Traffic Laws Flashcards

What is the legal blood alcohol concentration limit for drivers 21 and over in South Dakota?

Answer: 0.08%

South Dakota sets the legal BAC limit at 0.08% for drivers aged 21 and older, consistent with the national standard.

In South Dakota, what must you do when approaching a stopped school bus with flashing red lights?

Answer: Stop regardless of your direction of travel unless separated by a physical median

South Dakota law requires all traffic from both directions to stop for a school bus with activated red flashing lights, unless separated by a physical barrier.

What is the maximum speed limit on South Dakota interstate highways?

Answer: 80 on interstate mph

The maximum speed limit on South Dakota interstate highways is 80 on interstate mph, though lower limits may be posted in urban areas and construction zones.

In South Dakota, when must you turn on your headlights?

Answer: From sunset to sunrise and when visibility is reduced

South Dakota requires headlights from sunset to sunrise and when visibility is reduced by weather conditions such as rain, fog, or snow.

What is South Dakota's implied consent law?

Answer: By driving, you consent to chemical testing if lawfully arrested for impaired driving

South Dakota's implied consent law means that by operating a motor vehicle, you automatically agree to submit to chemical testing if lawfully arrested for driving under the influence.

What are the seat belt requirements in South Dakota?

Answer: Secondary enforcement

South Dakota's seat belt law requires occupants to be properly restrained while the vehicle is in motion.