WILLIAMS TANK LINES LLC
USDOT 229047 · Doing business as WILLIAMS TANK LINES
Active, interstate carrier, large fleet (336 power units) — safety rating: satisfactory.
Vetting summary
At a glance
- Insurance on fileNational Union Fire Insurance Company of Pittsburgh, Pa.
- Coverage gapsNone detected
- Out-of-service rate6.2% vs 19.1% national avg
- Crashes (24 months)17 reported — involvement does not imply fault
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 229047 |
|---|---|
| MC Number | MC-197435 |
| Legal Name | WILLIAMS TANK LINES LLC |
| DBA Name | WILLIAMS TANK LINES |
| Entity Type | CORPORATION |
| Phone | 2099445613 |
| Address | 1477 TILLIE LEWIS DR, Stockton, CA, 95206-1130 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | S — Satisfactory (rated 20140519) |
| Hazmat Flag | true |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Filings
Insurance
| Current Insurer | National Union Fire Insurance Company of Pittsburgh, Pa. |
|---|---|
| Coverage on File | $750,000 |
| Insurance on File Since | 2026-04-01 |
| Insurer | Coverage | Form | Effective | Cancelled |
|---|---|---|---|---|
| A I Transport | $750,000 | BMC-91X | 2026-04-01 | — |
| Pacific Financial Association Inc | $75,000 | BMC-85 | 2013-10-24 | — |
Timeline
Authority history
| Authority Events on Record | 2 |
|---|
- 1987-05-26 — Reinstated — Motor Carrier of Property (Except Household Goods) Active REINSTATED
- 2023-06-05 — Reinstated — Broker of Property (Except Household Goods) Active REINSTATED
Our scoring
Safety scores
| Unsafe Driving | 78 / 100 |
|---|---|
| Hours-of-Service Compliance | 81 / 100 |
| Driver Fitness | 86 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 66 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 727 |
|---|---|
| Out-of-Service Rate | 6.2% vs 19.1% national average |
| Crashes | 17 total (0 fatal, 8 with injuries, 17 towaway) |
- 2026-05-08 — CA — 4 injured, towaway
- 2026-04-25 — CA — towaway
- 2026-04-14 — CA — 1 injured, towaway
- 2026-01-25 — CA — towaway
- 2025-09-26 — CA — towaway
Most frequent violation categories: 16 (108), 15 (48), 20 (36).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 336 |
|---|---|
| Drivers | 347 |
| Recent Annual Mileage | 13,000,000 |
| Last MCS-150 Filing | 01-APR-25 |
WILLIAMS TANK LINES LLC operates 336 power units — a larger fleet than 100% of carriers registered in CA.
Nearby
Other carriers in Stockton, CA
- CHEROKEE FREIGHT LINES STOCKTON LLC — USDOT 154922, 238 power units
- PANELLA TRUCKING LLC — USDOT 234182, 232 power units
- RALPH PANELLA LEASING LP — USDOT 334013, 232 power units
- CHEMICAL TRANSFER COMPANY — USDOT 269372, 231 power units
- REEVE TRUCKING COMPANY INC — USDOT 290187, 162 power units
Browse all carriers in Stockton, CA or all CA carriers.