WILLIAM N MASON INC
Federal law requires active proof of continuous auto liability ($750k-$1M) on file to avoid DOT Out-of-Service orders or authority revocation.
Fleet Equipment, Drivers & Mileage Utilization
Commercial Truck Insurance & Federal Filing Requirements
2026 Underwriting BenchmarkMCS-150 Biennial Schedule & FMCSA Safety Record
Frequently Asked Questions About WILLIAM N MASON INC
Is WILLIAM N MASON INC (USDOT #227340) currently authorized and active?
According to U.S. DOT / FMCSA Company Census records, WILLIAM N MASON INC (USDOT #227340, MC-407667) holds an ACTIVE registration in Baltimore, Maryland, classified under Interstate (AUTHORIZED FOR HIRE).
How many trucks and drivers does WILLIAM N MASON INC operate?
WILLIAM N MASON INC reports 15 commercial power unit(s) and 11 driver(s) (including 11 CDL drivers) on its FMCSA MCS-150 census filing.
What commercial truck insurance filings are required for USDOT #227340?
Based on its Interstate operations hauling Hazardous Materials (Hazmat), federal regulations generally require $1,000,000 – $5,000,000 minimum primary liability (BMC-91X Liability ($1M–$5M Hazmat) • MCS-90 Hazmat Endorsement). Estimated market insurance benchmark for a 15-unit fleet in MD is $12,400–$19,500 per power unit annually.
When is WILLIAM N MASON INC's mandatory FMCSA MCS-150 biennial update due?
Under 49 CFR § 390.19, based on the last two digits of USDOT #227340, WILLIAM N MASON INC must file its MCS-150 biennial update every October in Even Years (2026, 2028). Last recorded MCS-150 date: 2026-05-06.
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