Tetra Tech Inc is an active interstate carrier based in Pasadena, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 6 | 0 | 0 |
| Total Power Units | 6 | ||
Distinct vehicles · 24 mo
vs 6 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 | 76% | 93% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 75% | 90% | Worse than most peers |
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 | 0 | — | 6.67% |
| Vehicle | 0 | 4 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 8 | 0 | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | VA | STRAIGHT TRUCK | 0 | 0 |
| Feb 2, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Dec 15, 2025 | IA | STRAIGHT TRUCK | 0 | 0 |
| Nov 11, 2025 | WY | TRUCK TRACTOR | 4 | 3 |
| Sep 17, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 0.48 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 4.47 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
Where they run
Inspected in 8 states. Top state IA accounts for 22% of activity. Activity outside home state (CA): 100%.
+3 other states with fewer inspections
| Unsafe Driving |
| 1 |
| 0 |
| 0 |
| RI |
| STRAIGHT TRUCK |
| 1 |
| 0 |
| May 14, 2025 | IA | STRAIGHT TRUCK | 4 | 1 |
| Jul 16, 2024 | VT | TRUCK TRACTOR | 0 | 0 |
| Jun 17, 2024 | KS | TRUCK TRACTOR | 0 | 0 |
| May 13, 2024 | NJ | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Nov 11, 2025 | 39343DB | Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly | Vehicle Maintenance | Yes |
| Nov 11, 2025 | 39343DBMA | Brake - Breakaway not attached to the towing vehicle | Vehicle Maintenance | Yes |
| Nov 11, 2025 | 39348ABIBD | Drum Brake - Inoperative other than a steering axle | Vehicle Maintenance | — |
| Nov 11, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Sep 17, 2025 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| May 14, 2025 | 39348A | Inoperative/defective brakes | Vehicle Maintenance | — |
| May 14, 2025 | 39360D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Vehicle Maintenance | — |
| May 14, 2025 | 39617C | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | — |
| May 14, 2025 | 3963A1BOS | BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination | Vehicle Maintenance | Yes |