# Do I Need to File an MCS-150 Biennial Update?

Canonical: https://www.fastmcs150filing.com/guides/do-i-need-mcs-150
Category: FMCSA Compliance
Published: 2026-04-24
Updated: 2026-04-24
Read time: 5 min read

> Every USDOT holder files MCS-150 every 24 months — interstate carriers, intrastate carriers, brokers, and forwarders. Here is who is in and who is out.

## TL;DR

> If your business shows a USDOT number on SAFER, you file MCS-150 every 24 months — interstate carriers, intrastate carriers under FMCSA, brokers (MC-B), and freight forwarders (MC-FF) all included. Fleet size does not change the rule.

## Key takeaways

- Every USDOT holder files MCS-150 — for-hire, private, owner-operator, and large fleets alike.
- Most intrastate carriers route through the FMCSA system and file on the same biennial schedule as interstate carriers.
- Brokers and freight forwarders with MC authority hold USDOT numbers and file MCS-150 with simplified fleet/mileage fields.
- Owner-operators leased to another carrier do not file separately — the lessor files under their USDOT.

## FAQ

### Who needs to file MCS-150?

Every entity with an active USDOT number needs to file MCS-150 every 24 months. That includes interstate motor carriers, intrastate motor carriers whose USDOT was issued under a state program that uses the FMCSA system, property and household-goods brokers (MC-B), and freight forwarders (MC-FF). Fleet size does not matter — one-truck owner-operators file the same form as 500-truck fleets.

### Do intrastate carriers need to file MCS-150?

If your state issued you a USDOT number through the FMCSA system, yes — you file MCS-150 on the biennial schedule just like an interstate carrier. A handful of states run intrastate-only registrations that never attach to the FMCSA system; those carriers file state-level forms instead. Check your SAFER record — if you show up with a USDOT number, you file MCS-150.

### Do private carriers need to file MCS-150?

Yes, as long as you hold a USDOT number. "Private carrier" means you haul your own goods rather than for hire, but private carriers operating commercial motor vehicles (over 10,001 lbs GVWR, or carrying hazmat, or carrying 9+ passengers) are USDOT-registered and file MCS-150 on the same biennial cadence.

### Do freight brokers need to file MCS-150?

Yes. Brokers who hold an FMCSA MC-B authority also hold a USDOT number and must file MCS-150 every 24 months. The form has a simplified path for brokers since the fleet and mileage fields do not apply, but the filing itself is required.

### Who is exempt from MCS-150?

Carriers who do not hold a USDOT number are exempt — typically intrastate carriers registered under a purely state-level program that never touches the FMCSA system. Also exempt: carriers whose USDOT has already been voluntarily deactivated and who are no longer operating. Everyone else with an active USDOT files on the biennial schedule.

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