WILLIAM R SWANIGAN is a motor carrier based in GRANBY, MA registered with the Federal Motor Carrier Safety Administration under USDOT number 4509391.
Authority granted by the FMCSA defines what type of freight a motor carrier or broker is legally permitted to haul or arrange. The records below reflect the most recent authority filings on record for WILLIAM R SWANIGAN.
| Docket | Common | Contract | Broker | Since |
|---|---|---|---|---|
| FF 70393 | None | None | None | 2026-01-29 00:00:00 |
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