USDOT & MC Authority in Louisiana

Do Louisiana carriers need both a USDOT number and MC authority?

Every commercial motor vehicle operating in interstate commerce needs a USDOT number under 49 CFR §390. The USDOT is free and is FMCSA's primary safety-tracking identifier - it's what shows up on roadside inspection reports and what FMCSA uses to compile CSA scores.

MC operating authority is separate. A Louisiana carrier that hauls its own goods (private carrier, like a fleet of company-owned trucks delivering its own product) doesn't need MC authority. A Louisiana carrier that hauls freight for compensation across state lines (for-hire interstate) does need MC authority - the FMCSA fee is $300 per authority type (49 CFR 360.3T), and FMCSA controls how long review takes.

Where do Louisiana carriers apply for MC authority?

Louisiana's 9,200+ registered carriers (FMCSA SAFER data) make it a high-volume application state.

MC authority applications go through FMCSA's Motus registration system at motus.dot.gov (which replaced the legacy URS portal on May 14, 2026) - there's no Louisiana-specific filing channel. The state's FMCSA service center, FMCSA Southern Service Center (Atlanta, GA), supports investigators and carrier-information specialists but doesn't issue MC numbers itself. Once an application is published in the FMCSA Register, a 10-day public protest period runs (49 CFR §365.203T), and the BOC-3 and primary liability insurance must be on file within 20 days of the Register notice (49 CFR 365.109T).

What has to be on file before the authority is granted?

When FMCSA accepts a Louisiana carrier's application, it is published in the FMCSA Register with a 10-day public protest period (49 CFR §365.203T). Two filings have to be on file before FMCSA grants the authority: (1) the BOC-3 process agent designation and (2) the BMC-91 primary liability insurance filing from the carrier's insurer, both within 20 days of the Register notice (49 CFR 365.109T).

If either is missing, the application stays pending. Insurance being bound isn't enough on its own: the insurer has to file the BMC-91 with FMCSA. You can check both filings in FMCSA's Motus public search by USDOT number or company name.

What does it cost Louisiana carriers, and what's ongoing?

Year-one cost for a Louisiana new-entrant motor carrier typically lands between $1,500 and $4,500 (varies with insurance, equipment and state). Federal pieces: $300 FMCSA fee per authority type, BOC-3 ($75 with FastBOC3Filing), MCS-150 (free at FMCSA in Motus; FastMCS150Filing is paused right now), UCR ($90 first year for fleets of up to 2 vehicles with FastUCRFiling), and Form 2290 if any vehicle is 55,000+ lbs. Louisiana-specific: No state weight-distance tax beyond IFTA.

Ongoing obligations after the authority is granted: MCS-150 every 24 months, UCR annually by December 31, Form 2290 annually by August 31, the BOC-3 kept on file, and primary liability insurance current at all times. Letting insurance or the BOC-3 lapse can lead FMCSA to revoke the authority, and a missed biennial update can lead to civil penalties and deactivation of the USDOT number (49 CFR 390.19T(b)(4)). Reinstatement is a separate filing.

For a line-by-line breakdown, see how much it costs to start a trucking company.