Williams Tank Lines
Williams Tank Lines LLC · Stockton, California · Carrier number 229047
336
power units
336
power units
Williams Tank Lines is a freight carrier based in Stockton, California with 336 power units and 347 drivers as reported, the 1,619th largest trucking fleet in the US and the 109th largest in California. In the 24 months to Sep 30, 2026 it had 16 reportable crashes (4.76 per 100 power units vs 2.98 for all carriers).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
336
#109 in CA
Drivers
347
258 with commercial license
Crashes, 24 mo
16
0 fatal
Per 100 trucks
4.76
All carriers: 2.98
Vehicles out of service
6.9%
All inspections: 22.8%
Inspections, 24 mo
718
72% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Williams Tank Lines | 4.76 | 6.9% | 0.2% |
| Carriers with 10+ trucks in CA | 2.30 | 14.2% | 4.0% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
0 people killed and 11 injured
- Fatal0
- Injury8
- Tow-away8
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 618 | 1 | 0.2% |
| Vehicle | 684 | 47 | 6.9% |
| Hazardous load | 671 | 6 | 0.9% |
Carrier facts
- Carrier number
- 229047
- Based in
- Stockton, California
- Registered
- Feb 22, 1983
- Operation
- Across state lines
- Carries
- Freight
- Authority for hire
- Active
- Safety rating
- Satisfactory (May 19, 2014)
- Miles driven
- 13.0 million (2024)
- Type
- For hire
- Cargo
- Liquids gases, Other
- Last update filed
- Apr 1, 2025
Questions and answers
How many trucks does Williams Tank Lines have?
Williams Tank Lines reports 336 power units (trucks, tractors and buses) and 347 drivers, 258 of them with a commercial license. That is the 1,619th largest fleet among US trucking carriers. Its trucks drove 13.0 million miles in 2024.
Is Williams Tank Lines a safe carrier?
In 24 months Williams Tank Lines had 16 reportable crashes, 4.76 per 100 power units (above the 2.98 of all carriers with 10+ trucks). 6.9% of its vehicle inspections took the truck off the road (all inspections: 22.8%). Its latest official safety rating is Satisfactory (May 19, 2014). A crash record does not say who caused the crash.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.