Do I need MCS-150 if I only operate intrastate?
Last reviewed October 24, 2026
No federal biennial update applies to intrastate-only carriers (49 CFR 390.19T(a)(1); FMCSA, Sept 2026), unless you haul hazmat that needs an FMCSA safety permit (MCS-150B). Some states require intrastate carriers to update their FMCSA record on a recurring basis, and Motus lets intrastate carriers update mileage, power units and driver counts.
FMCSA's "Do I Need a USDOT Number?" page (updated September 3, 2025) lists 38 states plus Puerto Rico that require their intrastate commercial motor vehicle registrants to obtain a USDOT number. A CMV operating only inside one of those states still gets a USDOT, but the number alone does not put it on the federal biennial-update schedule; any recurring update requirement comes from the state. The full list is in our guide to USDOT numbers for intrastate carriers.
The 12 states not on FMCSA's list handle intrastate registration through their own state systems. Carriers operating purely intrastate in those states may not hold a federal USDOT and therefore not be on the MCS-150 schedule - but they typically have a state-level registration with its own update cadence.
For carriers operating both interstate and intrastate (a common pattern for regional fleets), the federal MCS-150 covers the interstate operation; the intrastate registration cycle is a separate state-level filing on top.
A common confusion: holding a USDOT number does not by itself create the federal biennial duty. A private fleet with a USDOT but no MC that hauls only inside one state is intrastate-only; §390.19T(a)(1) ties the biennial MCS-150 to interstate operation, and §390.19T(a)(2) ties the MCS-150B to an FMCSA hazmat safety permit. Any change to your registration information still belongs in an update within 30 days.