South Dakota Motor Carrier Services
District Four of the South Dakota Highway Patrol oversees motor carriers entering South Dakota at four permanent ports of entry.
- Jefferson (I-29 MP 13)
- Sioux Falls (I-90 MP 412)
- Sisseton (I-29 MP 235)
- Tilford (I-90 MP 39)
At each port, motor carrier inspectors ensure that the carrier’s paperwork, permits and necessary documents are in order. They also provide educational information to the public about motor carrier issues.
In addition, the district has mobile scale teams throughout the state responsible for roadside inspections to ensure all commercial vehicles on the road are safe. Troopers who specialize in motor carrier enforcement provide support to the mobile teams and ports of entry. They also travel the roadways conducting random roadside inspections of motor carriers.