By Evan Reid, Founder of Haul Handbook · Updated Sep 28, 2026
The Mississippi intrastate rule
Federal USDOT registration depends on the vehicle and operation. The rows below show what Mississippi requires for carriers operating inside the state. Our state DOT number requirements table holds the same answer for every state. A field reading "Not confirmed" means this guide has no verified figure for that field.
- Weight trigger
- Mississippi sets no state weight trigger for a USDOT Number because it does not require the number for intrastate operation. The federal rule still reaches intrastate carriers hauling hazardous materials in the types and quantities that need an FMCSA safety permit (49 CFR 385.403).
- Statute
- No Mississippi statute requiring a USDOT Number for intrastate operation is cited. The Motor Carrier Regulatory Act sections in Title 77, Chapter 7 of the Mississippi Code could not be read: the official free publisher (LexisNexis Mississippi Code Public Access) served a confirm-you-are-human check, as recorded in the state intrastate authority page.
Mississippi is not on FMCSA's list of states that require their intrastate commercial motor vehicle registrants to obtain a USDOT Number. MDOT's General Freight application still asks for the carrier's U.S.D.O.T. number and FHWA/MC numbers, and its receipt form asks a carrier that has paid Unified Carrier Registration fees for its USDOT and Motor Carrier numbers so MDOT can verify the payment and waive the per-vehicle fee.
No separate Mississippi carrier number
Mississippi issues no marketed state carrier number of the kind Texas (TxDMV Number) or California (CA Number) use. The office-use block of MDOT's MSR-1 receipt form records a Carrier Receipt Number and a Carrier Record Number for general freight carriers, and a Carrier Certificate Number for household goods and passenger carriers, but MDOT does not present these as a number the carrier displays or quotes.
No Mississippi-specific USDOT marking rule appears on the MDOT and Department of Revenue pages read for this file, so none is asserted.
Where a Mississippi carrier enrolls
Registration goes to the agency that issues each credential; the federal process is covered step by step in our guide to getting a USDOT number. Filing services resell these same applications, so the rows below name the direct channel first.
Create a user profile, complete identity verification, and create a company account in Motus to apply for a USDOT number and the registrations your operation needs. Claim your existing USDOT record in Motus using the company official’s Login.gov email, then manage registrations or apply for additional authority. See the Motus account guide before opening or claiming your record.
- USDOT number
- Directly with FMCSA; no Mississippi agency issues the USDOT Number (registration site)
- USDOT application fee
- The FMCSA page read for this file states no application fee for the USDOT Number itself, so none is recorded.
MDOT publishes downloadable intrastate application forms rather than an online filing portal. General freight carriers mail the application and Form MSR-1 with payment to MDOT, Motor Carrier Section/66-05, P.O. Box 1850, Jackson, MS 39215-1850.
Three Mississippi credentials ask for the number. The Department of Revenue requires the USDOT number and Taxpayer Identification Number on every IRP registration (of the carrier responsible for safety when the truck is leased), plus an MCS-150 updated within the past year. MDOT's 2026 permit manual requires a valid federal DOT number before any oversize or overweight permit issues. MDOT's intrastate General Freight application asks for it as well.
Once a number is active, anyone can pull the public record behind it; our DOT number lookup guide shows how to read that snapshot the way brokers and enforcement do, and the MC number lookup reads the live record back for a number you type in.
The same number carries your safety history. Every roadside inspection written against it feeds the CSA percentiles a broker's vetting platform reads after it checks your authority and insurance, and a violation recorded in error is corrected through DataQs, not by the state agency that issued the credential above.
The state registration triggers behind it
These are the operations that pull a carrier into Mississippi's own motor carrier registration, where the DOT number rules above attach. The full credential, fees, and insurance filings live on the Mississippi intrastate authority page.
- Weight trigger
- The Motor Carrier Regulatory Law sets no weight floor in its definitions. Miss. Code Ann. 77-7-7(d) defines a motor vehicle as any vehicle, machine, tractor, trailer or semitrailer propelled or drawn by mechanical power and used on the highways to carry passengers or property, and 77-7-7(g) makes every carrier of property (except household goods) by motor vehicle for compensation a restricted motor carrier. MDOT's General Freight Guidelines and application state no weight threshold either. The 10,000-pound figure in 77-7-16 governs safety inspection, not operating authority. Section 77-7-21 applies to restricted motor carriers 'not exempted in this chapter', and the chapter's exemption provisions (such as 77-7-9) could not be read at an official host, so no threshold is recorded and its absence is not declared.
Where the number fits in the Mississippi launch
Registration numbers come early: they exist before insurance binds and before the first load. For the full order of operations, from entity to authority to plates, work through start a trucking company in Mississippi, and keep the Mississippi trucking hub handy for the rest of the state's credentials.