Look up a carrier / DOT 44035
USDOT 44035DUNCAN & SON LINES INC
14% of inspections ended in an out-of-service order.
This describes the roadside inspection record, not an official safety rating. FMCSA issues Satisfactory, Conditional and Unsatisfactory ratings through a separate compliance review, and most carriers have never been rated.
Inspection summary
| Inspections on file | 50 |
|---|---|
| Clean, no violations | 28 |
| Ended out of service | 7 |
| Out-of-service rate | 14.0% |
| Most recent | 2026-08-04 |
Showing the 50 most recent inspections held for this carrier. FMCSA keeps a rolling window, so this is a recent record rather than a lifetime one.
Recent inspections
| Date | State | Level | Violations | Service |
|---|---|---|---|---|
| 2026-08-04 | WA | Walk-around | 0 | In service |
| 2026-08-03 | CA | Walk-around | 0 | In service |
| 2026-08-03 | CA | Walk-around | 0 | In service |
| 2026-08-03 | CA | Walk-around | 1 | In service |
| 2026-07-31 | CA | Full | 0 | In service |
| 2026-07-31 | CA | Full | 0 | In service |
| 2026-07-30 | CA | Full | 2 | In service |
| 2026-07-29 | CA | Full | 0 | In service |
| 2026-07-28 | AZ | Walk-around | 1 | Out of service |
| 2026-07-28 | AR | Walk-around | 0 | In service |
| 2026-07-28 | CA | Full | 0 | In service |
| 2026-07-28 | NV | Walk-around | 1 | In service |
| 2026-07-27 | CA | Full | 1 | In service |
| 2026-07-27 | TX | Walk-around | 1 | In service |
| 2026-07-27 | CA | Full | 0 | In service |
| 2026-07-27 | CA | Full | 2 | In service |
| 2026-07-25 | CA | Full | 3 | Out of service |
| 2026-07-24 | CA | Driver only | 1 | In service |
| 2026-07-23 | CA | Walk-around | 4 | Out of service |
| 2026-07-22 | AZ | Walk-around | 2 | In service |
| 2026-07-22 | CA | Driver only | 0 | In service |
| 2026-07-21 | CA | Full | 6 | Out of service |
| 2026-07-18 | CO | Driver only | 0 | In service |
| 2026-07-17 | CA | Driver only | 2 | In service |
| 2026-07-16 | OK | Driver only | 0 | In service |
Violations found
Every violation recorded across the most recent inspections. An out-of-service violation means the vehicle or driver was ordered off the road at the roadside.
| Code | Violation | Service |
|---|---|---|
| 392.2-SLLEWA2 | State/Local Laws - Excessive weight - 2501-5000 lbs over on an axle/axle groups | In service |
| 393.102C2-C | Cargo - Sided Vehicle - Insufficient load securement so that it cannot shift or tip to the extent that the vehicle's stability or maneuverability is adversely aff | Out of service |
| 395.24C2II-ELDTN | HOS (ELD) - Driver failing to manually input or verify CMV trailer number. | In service |
| 395.24C2III-ELDSDN | HOS (ELD) - Driver failing to manually input or verify shipping document number. | In service |
| 393.78A-WS | Washers - Inoperative washing system. | In service |
| 393.55E-B | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 | In service |
| 390.21TB1-MC | Operating a CMV without legal name or trade name displayed | In service |
| 393.75A3-TAOL | Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Out of service |
| 393.45B2-B-AIR | Air Brake - Hose/tubing damaged or not secured | In service |
| 393.45D-B | Air Brake - Audible air leak at a proper connection | In service |
| 393.9A-LRLI | Lighting - Tail lamp - Any inoperative | In service |
| 393.9A-LSML | Lighting - Side marker lamp(s) inoperative | In service |
| 395.3A3-HOSPRNP | Driving beyond 11 hour driving limit in a 14-hour period. (Property carrying vehicle) - Nominal Violation | In service |
| 392.2-SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | In service |
| 393.205A-WRBH | Wheel/Rim - Cracks between stud holes/hand holes | Out of service |
| 395.24D-ELDPT | HOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with t | In service |
| 393.9A-LSML | Lighting - Side marker lamp(s) inoperative | In service |
| 392.2W | Excessive Weight violation | In service |
| 392.2-SLLEWA2 | State/Local Laws - Excessive weight - 2501-5000 lbs over on an axle/axle groups | In service |
Source: FMCSA Company Census, Vehicle Inspection File and Inspections and Violations, via data.transportation.gov. Refreshed daily. Verify against FMCSA directly before relying on any of this to tender a load.