# Why Does the FMCSA Revoke Operating Authority?

Canonical: https://www.fastreinstatementfiling.com/guides/common-reasons-for-dot-revocation
Category: FMCSA Compliance
Published: 2026-04-24
Updated: 2026-04-24
Read time: 7 min read

> Top causes of FMCSA revocation: missed MCS-150 biennials, insurance lapses, unpaid civil penalties, and failed audits. What triggers each — and how to fix it.

## TL;DR

> Almost every FMCSA revocation traces to one of four causes, in rough frequency order: a missed MCS-150 biennial under 49 CFR §390.19, a BMC-91 insurance lapse under 49 CFR §387, an unpaid civil penalty under §386, or a failed new entrant safety audit under 49 CFR §385. A handful of edge causes — invalid BOC-3, OOS orders, ignored compliance reviews — round out the list.

## Key takeaways

- A missed MCS-150 biennial is the #1 revocation cause — and the easiest to prevent with a calendar reminder.
- A BMC-91 insurance lapse is the fastest path from ACTIVE to NOT AUTHORIZED — FMCSA learns the same day coverage drops.
- Even a few hundred dollars in unpaid civil penalty can trigger revocation under 49 CFR §386.
- New entrant audits under §385 follow every carrier for 18 months after authority grant.
- Quarterly SAFER + L&I checks surface three of four common causes before they escalate.

## Cited entities

- Federal Motor Carrier Safety Administration (https://www.fmcsa.dot.gov)
- 49 CFR Part 390 — General Applicability
- 49 CFR Part 387 — Financial Responsibility
- 49 CFR Part 386 — Enforcement Proceedings
- 49 CFR Part 385 — Safety Fitness Procedures
- 49 CFR Part 366 — Process Agents
- BMC-91 Insurance Filing

## FAQ

### What is the #1 reason the FMCSA revokes authority?

A missed MCS-150 biennial update. Under 49 CFR Part 390, every motor carrier must update their MCS-150 record every two years based on the USDOT number assignment month. A missed update flips the record to inactive, and a prolonged lapse can escalate to full revocation. It is the most common revocation cause the FMCSA processes.

### How long can my BMC-91 insurance lapse before revocation?

The FMCSA receives electronic notification the day coverage lapses or cancels. Carriers typically have a short window — often 30 days or less — before the agency moves from suspension to revocation. Insurance lapse is the single fastest path from ACTIVE to NOT AUTHORIZED on SAFER.

### Can an unpaid civil penalty revoke my authority?

Yes. Non-payment of a final FMCSA civil penalty (served under 49 CFR Part 386) is grounds for revocation. Even modest unpaid penalties — a few hundred dollars — can trigger the process once the appeal window closes. The penalty must be paid in full before reinstatement is possible.

### What happens if I fail my new entrant safety audit?

New entrant carriers (within 18 months of authority grant) undergo a safety audit under 49 CFR Part 385. A failed audit places the carrier on a compliance action plan; failure to complete the action plan or serious safety violations can result in revocation of new entrant status and the associated authority.

### Does a BOC-3 lapse cause revocation?

A missing or invalid BOC-3 prevents authority from activating in the first place and can keep authority inactive indefinitely. While it is more commonly a new-authority blocker than a revocation trigger, carriers whose process-agent provider dissolves or drops them without refiling can see their authority flip to inactive until a new BOC-3 is on record.

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Full article: https://www.fastreinstatementfiling.com/guides/common-reasons-for-dot-revocation