Superior Tank Lines Northwest Division Inc is an active interstate carrier based in Portland, OR.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Total Power Units | 47 | ||
Distinct vehicles · 24 mo
vs 47 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 84% | 94% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 79% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 67% | 87% | 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 | 3 | — | 22.26% |
| Hazmat | 40 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
| Jan 1, 2025 | 0 | 0 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 26 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 17, 2026 | OR | STRAIGHT TRUCK | 0 | 0 |
| Jan 22, 2026 | WA | STRAIGHT TRUCK | 1 | 0 |
| Jan 20, 2026 | WA | STRAIGHT TRUCK | 1 | 0 |
| Dec 9, 2025 | WA | STRAIGHT TRUCK | 0 | 0 |
| Oct 30, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 0.20 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 15 | 1.98 | — |
| Driver Fitness | 1 | 0.11 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 4 states. Top state WA accounts for 57% of activity. Activity outside home state (OR): 68%.
| 2 |
| 8 |
| Unsafe Driving | 3 | 0 | 0 |
| Hazardous Materials Compliance | 2 | 0 | 0 |
| Driver Fitness | 1 | 1 | 1 |
| WA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Oct 27, 2025 | OR | STRAIGHT TRUCK | 0 | 0 |
| Oct 23, 2025 | WA | STRAIGHT TRUCK | 1 | 1 |
| Oct 2, 2025 | WA | STRAIGHT TRUCK | 1 | 0 |
| Sep 15, 2025 | OR | TRUCK TRACTOR | 0 | 0 |
| Sep 11, 2025 | OR | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 22, 2026 | 172302AHMM | HM (Markings) - Failing to mark a bulk HM package with ID numbers as required. | Hazardous Materials Compliance | — |
| Jan 20, 2026 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Oct 23, 2025 | 3939BLRLIWR | Lighting - Tail lamp - Both lamps on rearmost vehicle inoperative when required to be on | Vehicle Maintenance | Yes |
| Oct 2, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 23, 2025 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Jun 12, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Jun 12, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Jun 12, 2025 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Jun 12, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| May 29, 2025 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |