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Duncan & Son Lines Inc (DOT# 44035) – FMCSA Carrier Profile

DOT# 44035MC# 144606● Active
Updated: 2026-03-09

Duncan & Son Lines Inc is a registered motor carrier with the FMCSA under USDOT number 44035. The company operates from Buckeye, AZ and maintains an active operating status with 259 power units and 231 drivers on record.

Safety Rating

FMCSA Safety Rating
✓ Satisfactory
Rated: October 13, 2010

Duncan & Son Lines Inc holds a "Satisfactory" safety rating from the Federal Motor Carrier Safety Administration (FMCSA). This rating indicates that the carrier has been found to comply with federal safety regulations based on the most recent compliance review conducted by FMCSA. View official FMCSA record →

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Company Information

Address23860 W Us Hwy 85, Buckeye, AZ, 85326
Phone(623) 386-4511
EmailJULIE@DUNCANTRUCKINGLTD.COM
Entity TypeAuthorized For Hire
OperationInterstate
Power Units259
Drivers231
MCS-150 FiledFebruary 10, 2026
Annual Mileage23,801,483 mi (2025)
All carriers in Arizona→Carriers in Buckeye, AZ→

Inspection Summary

All-time Inspections
All-time
364
Total
42
OOS
7
Driver OOS
35
Vehicle OOS
OOS Rate11.54%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.

Crash History

Crash Records
All-time
14
Total
0
Fatal
5
Injuries
0
Tow-Away

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
1.5
Unsafe Driving
0.4
HOS Compliance
0.0
Driver Fitness
0.0
Controlled Substances
1.8
Vehicle Maintenance
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Frequently Asked Questions

What is USDOT Number 44035?
USDOT number 44035 is assigned to Duncan & Son Lines Inc, an active motor carrier registered with the FMCSA, based in Buckeye, AZ.
What is the safety rating of Duncan & Son Lines Inc?
Duncan & Son Lines Inc has a safety rating of Satisfactory as of October 13, 2010.
How many inspections has Duncan & Son Lines Inc had?
Duncan & Son Lines Inc has recorded 364 total inspections with 42 out-of-service orders, representing an OOS rate of 11.54%.
Where is Duncan & Son Lines Inc located?
Duncan & Son Lines Inc is headquartered at 23860 W Us Hwy 85, Buckeye, AZ 85326.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 44035 · Last updated: 2026-03-09. View official FMCSA record →