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 | 336 | ||
Distinct vehicles · 24 mo
vs 336 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 | 1 | — | 6.67% |
| Vehicle | 0 | 52 | — | 22.26% |
| Hazmat | 607 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jul 1, 2026 | 0 | 0 | 1 | 1 |
| Apr 1, 2026 | 0 | 5 | 3 | 3 |
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
| Jul 1, 2025 | 0 | 0 | 1 | 1 |
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 310 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 23, 2026 | CA | STRAIGHT TRUCK | 2 | 0 |
| Sep 23, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Sep 22, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Sep 22, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Sep 22, 2026 |
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Carriers that share an officer, phone, or email with this DOT.
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 6 | 0.08 | — |
| HOS Compliance | 4 | 0.02 | — |
| Vehicle Maintenance | 143 | 1.35 | — |
| Driver Fitness | 1 | 0.01 | — |
| 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%.
| Jan 1, 2025 |
| 0 |
| 2 |
| 4 |
| 4 |
| Oct 1, 2024 | 0 | 4 | 5 | 5 |
| 41 |
| 65 |
| Hazardous Materials Compliance | 48 | 22 | 10 |
| Hours-of-Service Compliance | 10 | 2 | 0 |
| Unsafe Driving | 6 | 1 | 0 |
| Driver Fitness | 2 | 1 | 2 |
| CA |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Sep 20, 2026 | NV | TRUCK TRACTOR | 0 | 0 |
| Sep 20, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Sep 20, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Sep 17, 2026 | CA | TRUCK TRACTOR | 2 | 0 |
| Sep 16, 2026 | CA | STRAIGHT TRUCK | 2 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Sep 23, 2026 | 39311A1LIL | Lighting - Identification lamp(s) missing | Vehicle Maintenance | — |
| Sep 23, 2026 | 39311A1LLPL | Lighting - License plate lamp missing | Vehicle Maintenance | — |
| Sep 17, 2026 | 39311A1LCHL | Lighting - Lamps improper color height location. | Vehicle Maintenance | — |
| Sep 17, 2026 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Sep 16, 2026 | 1783456HMP | HM (Packaging) - DOT 406/407/412 supports and anchoring requirements. | Hazardous Materials Compliance | — |
| Sep 16, 2026 | 39375CTAOTDLT232 | Tires - Less than 2/32 inch tread depth | Vehicle Maintenance | — |
| Sep 6, 2026 | 39345DBAAL | Air Brake - Audible air leak at other than a proper connection | Vehicle Maintenance | Yes |
| Aug 25, 2026 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Aug 14, 2026 | 172602CHMER | HM (Emergency Response) - Improper maintenance/accessibility of emergency response information | Hazardous Materials Compliance | — |
| Aug 14, 2026 | 17324B1HMNBP | HM (Non-Bulk Packaging) -HM/DG leaking in or from a package | Hazardous Materials Compliance | Yes |