DBA: Williams Tank Lines
Williams Tank Lines Llc is an active interstate carrier based in Stockton, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 115 | 0 | 0 |
| Tractors | 46 | 0 | 0 |
| Total Power Units | 161 | ||
Distinct vehicles · 24 mo
vs 161 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 48% | 93% | Around peer average |
| HOS Compliance | 64% | 92% | Around peer average |
| Driver Fitness | 56% | 96% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 43% | 84% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 2 | — | 6.67% |
| Vehicle | 0 | 46 | — | 22.26% |
| Hazmat | 541 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
| Jul 1, 2025 | 0 | 0 | 1 | 1 |
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
| Jan 1, 2025 | 0 | 2 | 4 | 4 |
| Oct 1, 2024 | 0 | 4 | 5 | 5 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 262 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 25, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 23, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 23, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Mar 21, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 20, 2026 | CA |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 4 | 0.05 | — |
| HOS Compliance | 8 | 0.05 | — |
| Vehicle Maintenance | 157 | 1.44 | — |
| Driver Fitness | 2 | 0.02 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 5 states. Top state CA accounts for 94% of activity. Activity outside home state (CA): 6%.
| Jul 1, 2024 |
| 0 |
| 0 |
| 2 |
| 2 |
| 33 |
| 57 |
| Hazardous Materials Compliance | 34 | 16 | 7 |
| Hours-of-Service Compliance | 10 | 2 | 0 |
| Unsafe Driving | 4 | 1 | 0 |
| Driver Fitness | 2 | 1 | 2 |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Mar 20, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Mar 18, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 18, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Mar 17, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 15, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 14, 2026 | 17333AHMGP | HM (General Packaging) - Failing to comply with general cargo tank requirements. | Hazardous Materials Compliance | — |
| Mar 14, 2026 | 39311BCSURR | Conspicuity Systems - Trailers upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1 1993 | Vehicle Maintenance | — |
| Mar 9, 2026 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Mar 6, 2026 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Mar 6, 2026 | 3969D2FTF | Failing to correct the violation(s)/defect(s) noted on the roadside inspection report | Vehicle Maintenance | — |
| Mar 4, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Mar 2, 2026 | 3963A1DLDSYEL | Driveline/Driveshaft - Any yoke-mounting hardware loose (with hand pressure) broken or missing | Vehicle Maintenance | Yes |
| Mar 1, 2026 | 1783456HMP | HM (Packaging) - DOT 406/407/412 supports and anchoring requirements. | Hazardous Materials Compliance | — |
| Feb 28, 2026 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 25, 2026 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | — |