Mississippi CMV Compliance Guide
MS DOT regulations for commercial motor vehicles
MS DPS Motor Carrier SafetyOfficial MS DOT websiteOverview
Mississippi Department of Public Safety Motor Carrier Safety division handles commercial vehicle enforcement. Mississippi is a freight corridor state with I-55 and I-20 carrying heavy truck traffic. The state's economy drives significant agricultural and timber trucking.
Inspection & Enforcement Program
Mississippi operates weigh stations and mobile enforcement units. DPS officers perform Level I through Level III inspections. The state participates in national enforcement campaigns.
Weight Limits & Oversize/Overweight
Mississippi follows federal weight limits of 80,000 lbs GVW on Interstate highways. On state highways, Mississippi allows up to 80,000 lbs with proper axle configurations. The state issues overweight permits through MDOT.
Mississippi-Specific Requirements
- Mississippi requires intrastate carriers to obtain a Mississippi Public Service Commission operating authority for for-hire operations.
- The state has specific weight limits on the numerous bridges over the Mississippi River and its tributaries.
- Mississippi enforces specific timber hauling exemptions that differ from general commercial vehicle regulations.
Contact
MS DPS Motor Carrier Safety: (601) 987-1212
Federal Requirements That Apply in Mississippi
In addition to Mississippi-specific regulations, all federal DOT and FMCSA requirements apply to commercial vehicles operating in MS. These guides cover each federal requirement in detail:
This information is provided as a general reference. State regulations change frequently. Always verify current requirements with the Mississippi DOT or your compliance advisor before relying on any information presented here.