HaulWILLIAMS TANK LINES LLC
USDOT 229047 · Stockton, CA
Quick answers
- Is WILLIAMS TANK LINES LLC (USDOT 229047) allowed to operate?
- Yes. As of September 8, 2026, FMCSA's live record shows WILLIAMS TANK LINES LLC (USDOT 229047) is allowed to operate.
- Does WILLIAMS TANK LINES LLC have active operating authority?
- Yes. FMCSA's live records show active contract and broker operating authority for WILLIAMS TANK LINES LLC (MC197435) as of September 8, 2026.
- Does WILLIAMS TANK LINES LLC have insurance on file with FMCSA?
- Yes. FMCSA shows liability (BIPD) coverage of $750,000 and a surety bond of $75,000 on file for WILLIAMS TANK LINES LLC as of September 8, 2026. "On file" reflects the filed amounts, not confirmation of active coverage.
- What is WILLIAMS TANK LINES LLC's FMCSA safety rating?
- WILLIAMS TANK LINES LLC holds a Satisfactory FMCSA safety rating (rated May 19, 2014). This is FMCSA's official rating — one of Satisfactory, Conditional, or Unsatisfactory.
- What is WILLIAMS TANK LINES LLC's USDOT and MC number?
- WILLIAMS TANK LINES LLC is registered under USDOT 229047 and operating authority MC197435, based in Stockton, CA. FMCSA classifies it as an authorized for-hire carrier that is registered to haul hazardous materials.
- How large is WILLIAMS TANK LINES LLC's fleet?
- WILLIAMS TANK LINES LLC reports 161 power units and 347 drivers in its FMCSA record in Stockton, CA.
Answers reflect the public FMCSA record as of September 8, 2026; figures can change at any time.
Operating snapshot
Public FMCSA census & inspection records · as of 2026-06-06
WILLIAMS TANK LINES LLC is a for-hire motor carrier based in Stockton, CA, operating 161 power units and 347 drivers, and has been registered with FMCSA for about 43 years (since 1983). It is flagged as a hazardous-materials carrier in the FMCSA census. In this public FMCSA inspection snapshot it has 741 recorded inspections, with a vehicle out-of-service rate of 7.0% (below the 21.2% snapshot benchmark) and a driver out-of-service rate of 0.3% (below the 5.2% benchmark). HaulReport's highest reconstructed BASIC percentile for this carrier is Vehicle Maintenance at the 21.6th percentile (estimated band: Low), ranked among 497 safety-event peers — an independent estimate, not an official FMCSA or CSA score.
HaulReport interpretation — auto-generated from the public FMCSA data below and our percentile estimates.
Estimated BASIC percentiles
Out-of-service rates
Out-of-service rate = inspections resulting in an out-of-service order ÷ inspections. The benchmark is the inspection-weighted rate across this FMCSA snapshot — not an official national average. Rates are shown only with at least 5 inspections.
MCS-150 biennial update
Due July 2028FMCSA sets each carrier's biennial update month from the last two digits of the USDOT number (last digit → month, second-to-last digit → odd/even year) — it is required even when nothing has changed. This is a schedule derived from the public rule, not a compliance determination. Verify and file on FMCSA · Deadline calculator
Live FMCSA status
Allowed to operateOperating authority
- Common: None
- Contract: Active
- Broker: Active
- Docket: MC197435
- Authorized for property, broker
Insurance on file
- Liability (BIPD): $750,000
- Surety bond: $75,000
Safety
- Rating: Satisfactory (as of May 19, 2014)
- Driver out-of-service rate: 0.2%
- Vehicle out-of-service rate: 6.5%
- Hazmat out-of-service rate: 0.9%
Live read from FMCSA's QCMobile system on September 8, 2026. Insurance figures are FMCSA "on file" amounts, not confirmation of current coverage; values can change at any time. FMCSA QCMobile
Insurance on file
Liability (BIPD)Surety bondPrimary liability (BIPD) — maximum limit recorded by FMCSA: $750,000
2 filings on file — show details
Insurance on file
- Public liability (BIPD) — primaryNATIONAL UNION FIRE INS. CO. OF PITSBGH. PA
- Trust fundPACIFIC FINANCIAL ASSOCIATION, INC.
Insurance filings on record in FMCSA's Licensing & Insurance (L&I) system (active or pending per the source dataset), as of 2026-06-08. Dollar figures are the maximum limit recorded on the filing, not confirmation of current coverage, and this is not a recommendation; filings can change or lapse at any time and may not reflect today's status. Confirm current coverage directly with FMCSA. Verify on FMCSA L&I
Carrier facts (public FMCSA data)
| USDOT number | 229047 |
|---|---|
| Legal name | WILLIAMS TANK LINES LLC |
| Doing business as | WILLIAMS TANK LINES |
| Location | STOCKTON, CA |
| Operating classification | Authorized for-hire (per FMCSA census) |
| FMCSA operating authority | Active (per FMCSA licensing) |
| Hazmat carrier | Yes (per FMCSA census) |
| Power units (fleet size) | 161 |
| Drivers | 347 |
| Reported annual mileage | 13,000,000 (reported for 2024) |
| FMCSA registered | 1983 (~43 years) |
| Last MCS-150 update | April 1, 2025 |
| Next MCS-150 update due | July 2028 |
| Inspections (trailing 24 mo) | 741 |
| Published BASIC measures | 2 |
| Insurance filings (FMCSA L&I) | 2 on file (active/pending per source) — Public liability (BIPD) — primary, Trust fund |
State reference data: Truck-crash statistics for California — state-wide totals for all carriers registered in California, not specific to this carrier.