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Coloradodriving inSouth Dakota
Truck Friendly — high speed limits, no chain laws, good parking

South Dakota

Highway Speed
80 mph
Urban Speed
65 mph
Truck Parking
Good
Inspection Level
Low

Speed Limits

Truck speed limits in South Dakota: Highway 80 mph, Rural 80 mph, Urban 65 mph. Same as passenger vehicles; one of the highest truck speed limits. Left lane: No specific truck left-lane restriction.

Winter & Chain Laws

No mandatory chain law; chains permitted during winter weather Construction: Short construction season May-October; spring thaw restrictions possible on secondary roads.

Restricted Routes

Standard oversize/overweight permits; Black Hills area has some narrow roads with weight restrictions

Hours of Service & ELD

Standard federal HOS enforcement; SDHP motor carrier units ELD: Full federal ELD mandate compliance required.

Inspections & Enforcement

Low to moderate; generally truck-friendly approach Drug testing: Federal DOT drug testing requirements apply.

Parking Availability

Good; adequate truck stops along I-90 and I-29

Official Source

For the most current trucking regulations in South Dakota, visit the official enforcement page at https://dps.sd.gov/highway-patrol/motor-carrier.

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Related guides

South Dakota DOT / Enforcement: https://dps.sd.gov/highway-patrol/motor-carrier
Law last updated: 2025-01Row last reviewed: May 4, 2026

Trucking regulations change frequently. Always verify current rules with the official state DOT or highway patrol before operating. This guide is for informational purposes only. Data reflects regulations as of early 2026.