Mississippi Unified Long-range Transportation Infrastructure Plan - MULTIPLAN
- State government site provides reports and other information on the state's transportation systems and planning activities.
- http://www.mdotmultiplan.com/

Mississippi Department of Transportation
- Official site offers project updates, strategic and emergency traffic planning, events, maps, and press releases.
- http://www.mdot.state.ms.us

Mississippi Motor Vehicle Commission
- Information on the regulatory agency for sales, distribution, and advertising of new vehicles, licensing manufacturers, their representatives, dealers, and salespersons.
- http://www.mmvc.state.ms.us/