Duncan & Son Lines Inc

Interstate carrier in Buckeye, Arizona

Buckeye, AZ 85326 Since 1974 USDOT 44035 MC144606

General Freight
Paper Products
Intermodal Containers
Grain, Feed, Hay
Refrigerated Food

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Compliance standing for USDOT 44035

0 of 3 items need the owner's attention

MCS-150 filing Filed February 2026
Safety rating Satisfactory
Operating authority MC144606

Company overview

Awaiting owner confirmation

USDOT number: 44035
Operating authority: MC144606
Operation type: Interstate
Carrier classification: Authorized For Hire
Power units: 259
Trucks / tractors: 259
Drivers: 231
CDL drivers: 231
Hazmat: Yes
Annual mileage reported: 23,801,483 (2025)
USDOT registered since: 1974
Last MCS-150 filing: February 2026
Safety rating: Satisfactory (October 2010)

Built from public registration records.

Cargo and services

General Freight; Paper Products; Intermodal Containers; Grain, Feed, Hay; Refrigerated Food; Chemicals; Construction

DOT compliance requirements for Duncan & Son Lines Inc

Based on this carrier's registration profile, these federal requirements apply:

USDOT registration and MCS-150 biennial update

Every registered carrier must keep its MCS-150 filing current and update it at least every two years. Missing the biennial update window can deactivate USDOT number 44035. Check this company's MCS-150 deadline

Driver qualification files

With 231 drivers on record, this carrier must maintain a complete DQ file for each driver: applications, MVRs, medical certificates and road test records. DQ file services

Drug & Alcohol testing and FMCSA Clearinghouse

Carriers with CDL drivers (231 reported) must run a compliant DOT drug and alcohol testing program and complete annual Clearinghouse queries for every driver. Clearinghouse services

Hazardous materials compliance

This carrier is flagged for hazardous materials. That adds hazmat registration, placarding, security planning and driver training requirements on top of standard rules. Hazmat compliance help

Hours of service and ELD

As an interstate operation, drivers are subject to federal hours-of-service limits and, in most cases, electronic logging device requirements. ELD & HOS support