DBA: Diaz Trucking
Sergio Diaz Perez is an active interstate carrier based in Surprise, AZ.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 1 | 0 | 0 |
| Total Power Units | 1 | ||
Distinct vehicles · 24 mo
vs 1 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 96% | 96% | Worse than most peers |
| Driver Fitness | 99% | 98% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 89% | 86% | 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 | 2 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 2 states. Top state AZ accounts for 50% of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 5 | 3 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jun 23, 2025 | AZ | TRUCK TRACTOR | 1 | 0 |
| May 13, 2025 | AZ | TRUCK TRACTOR | 3 | 2 |
| Dec 2, 2024 | NM | TRUCK TRACTOR | 2 | 1 |
| Jul 16, 2024 | NM | TRUCK TRACTOR | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 1 | 1.00 | — |
| Vehicle Maintenance | 5 | 17.42 | — |
| Driver Fitness | 1 | 1.42 | — |
| Controlled Substances | 0 | 0.00 | — |
| Driver Fitness |
| 1 |
| 1 |
| 1 |
| Hours-of-Service Compliance | 1 | 0 | 1 |
| 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jun 23, 2025 | 39311A1CSLRR | Conspicuity Systems - Truck tractor lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1 1997 | Vehicle Maintenance | — |
| May 13, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| May 13, 2025 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| May 13, 2025 | 3958A1HOSP | HOS (Property) - Failing to have a record of duty status using the method prescribed | Hours-of-Service Compliance | Yes |
| Dec 2, 2024 | 39375A | Flat tire or fabric exposed | Vehicle Maintenance | — |
| Dec 2, 2024 | 39375A3 | Tire-flat and/or audible air leak | Vehicle Maintenance | Yes |
| Jul 16, 2024 | 39375A3 | Tire-flat and/or audible air leak | Vehicle Maintenance | Yes |