Why Does the FMCSA Revoke Operating Authority?

FMCSA revocations trace back to a handful of root causes, and carriers who understand them can spot trouble before it escalates to NOT AUTHORIZED in FMCSA's records. Here are the common causes and what each one actually requires to avoid.

Cause 1: BMC-91 Insurance Lapse

A BMC-91 or BMC-91X insurance lapse is a common path from ACTIVE to NOT AUTHORIZED. Insurers file cancellation notices with FMCSA electronically, and under 49 CFR 387.313T an insurer cannot cancel the filing until 30 days after FMCSA receives the notice. If replacement coverage is not on file by then, the agency moves to formal revocation under 49 CFR Part 387.

Minimum coverage under Part 387:

The common failure mode is a policy cancellation the carrier did not realize was coming — missed premium payment, paperwork error, or a renewal that the broker forgot to file electronically. A paper certificate of insurance alone does not satisfy the FMCSA requirement; the BMC-91 or BMC-91X must be filed electronically by the insurer into the FMCSA system.

#2: Unpaid FMCSA Civil Penalty

Non-payment of a final FMCSA civil penalty is grounds for revocation under 49 CFR Part 386. Even modest unpaid balances — a few hundred dollars in some cases — can trigger the revocation process once the appeal window closes. The penalty must be paid in full through FMCSA’s online fine-payment portal before the carrier can be reinstated.

Carriers occasionally assume a penalty is “probably not enforceable” or that a payment plan conversation with FMCSA has paused the revocation clock. Neither is true without a formal written agreement on file. If a Notice of Claim arrives from FMCSA, treat it as a direct revocation threat and respond within the 30-day window.

#3: Failed New Entrant Safety Audit

New entrant carriers — carriers within 18 months of their authority grant — undergo a mandatory safety audit under 49 CFR Part 385. The audit reviews driver qualification files, hours-of-service compliance, drug and alcohol testing, vehicle maintenance records, and insurance / BOC-3 status. A failed audit places the carrier on a corrective action plan; failure to complete the action plan or serious underlying violations can result in revocation of new-entrant status and the associated authority.

Audit failures are more serious than the administrative causes above — a conditional or unsatisfactory safety-rating flag on the carrier's record follows through reinstatement and can limit shipper and broker relationships long after the authority is restored.

Not a Revocation: Missed MCS-150 Biennial Update

Under 49 CFR Part 390, every motor carrier must update its MCS-150 every two years. The update month is tied to the USDOT number assignment month (the last two digits of the USDOT number determine the update schedule). A missed MCS-150 update can lead to civil penalties and deactivation of the USDOT number (49 CFR 390.19T(b)(4)); a carrier with an inactive USDOT number can't operate until the update is filed. FMCSA has temporarily suspended enforcement and USDOT inactivation for biennial updates due on or after June 1, 2026; the update is still required. A missed MCS-150 does not revoke operating authority, but FMCSA's systems will not accept a reinstatement request while the USDOT number is inactive.

The MCS-150 miss is easy to make for a simple reason: the update is free, takes 15 minutes online (or hands-off via MCS-150 update), and reminds most carriers of its existence only when the record goes inactive. Setting a calendar reminder for the assigned biennial month is the single cheapest compliance discipline a carrier can maintain.

Honorable Mentions

A handful of less common causes fill out the rest of the revocation picture:

• Missing or invalid BOC-3. More commonly a new-authority blocker than a revocation trigger, but carriers whose process-agent provider dissolves without refiling can see their authority flip to inactive until a new BOC-3 is filed under 49 CFR Part 366 (see BOC-3 filing).
• Unsafe-carrier out-of-service orders. Issued for serious safety violations (roadside, crash, or imminent-hazard findings). These carry the most weight and are the hardest to recover from.
• Failure to respond to a compliance review. Ignoring FMCSA document requests or a scheduled review can escalate to enforcement action independently of any underlying violation.

The Common Thread

These causes share a structural pattern: they involve periodic obligations that are easy to forget about between touch points. MCS-150 comes up once every 24 months, BMC-91 renewals come up once a year, civil penalties arrive with a 30-day clock, new-entrant audits come up once in the first 18 months. Carriers who keep each obligation on a calendar and check their status in FMCSA's Motus public search (by USDOT number or company name) quarterly can catch these problems before they escalate.