National Interstate Insurance Company

Every for-hire motor carrier operating in U.S. interstate commerce must keep continuous public-liability insurance on file with the Federal Motor Carrier Safety Administration. The insurer — not the carrier — files the proof of coverage using one of three forms: BMC-91 (single primary insurer covering the full required limit), BMC-91X (layered coverage from multiple insurers combining to reach the limit), or BMC-34 (cargo coverage required for household-goods movers). Federal limits range from $300,000 for non-bulk household-goods carriers to $5,000,000 for the most hazardous classes of hazmat.

The filings are publicly recorded in FMCSA's Licensing & Insurance (L&I) system and update within 24 hours of an insurer submitting paperwork. When an insurer cancels a BMC-91 filing, FMCSA gives the carrier a 30-day grace window to file replacement coverage; if no replacement is on file by the end of the window, FMCSA automatically revokes the carrier's operating authority. This is the most common reason MC dockets get revoked — insurance instability rather than safety violations.

TruckCodex mirrors the public L&I filings on a daily refresh cycle. We do not rate, endorse, or verify the financial strength of any insurer in this directory — every record reflects what FMCSA has on file. For ratings, consult A.M. Best or your state's department of insurance. For real-time confirmation immediately before relying on a filing, click through to FMCSA's SAFER portal directly.