Duncan & Son Lines INC (USDOT 44035)
2 cautions found.
- DOT number
- USDOT 44035
- Docket (MC) number
- MC144606
- Operating authority
- Common carrier authority: active. This record was reconstructed from cached FMCSA filings and has not been confirmed against live FMCSA data. Confirm current operating authority directly with FMCSA.
- Authority granted
- 1979-01-17
- Insurance on file
- Liability (BIPD) insurance on file for $1,000,000.
- Safety rating
- Satisfactory (rating decision 2010-10-13)
- Fleet on file
- 259 power units, 231 drivers
- Operation type
- Interstate
- Physical address
- 23860 W US HWY 85, BUCKEYE, AZ 85326
- MCS-150 last filed
- 2026-02
Findings
- Multiple carriers at this address (Caution): 2 other active carriers are registered at this physical address. Shared addresses are common for freight offices and registered agents.
- Hours of service at the FMCSA intervention threshold (Caution): Hours of service ranks 68 of 100 among similar carriers with recent violations (higher = worse). fleetfax peer estimate, not an official CSA score.
- Safety rating is more than 5 years old (Note): Rating Satisfactory issued 2010-10-13 (15 years ago); most recent FMCSA review 2010-10-07 (15 years ago). Both exceed the 5-year audit cycle
- Broker authority on file, currently inactive (Note): Registered as both a carrier and a broker, but its broker authority is not active right now
Connected carriers
Other carriers linked to this one in FMCSA registration and roadside-inspection records:
Frequently asked questions
What carrier is DOT 44035?
DOT 44035 (USDOT 44035) is Duncan & Son Lines INC, an interstate motor carrier.
What carrier is MC 144606?
MC 144606 is the docket number of Duncan & Son Lines INC, USDOT 44035.
What is Duncan & Son Lines INC's MC number?
Duncan & Son Lines INC's docket number is MC 144606. Its USDOT number is 44035.
Is Duncan & Son Lines INC currently authorized to operate?
Common carrier authority: active. This record was reconstructed from cached FMCSA filings and has not been confirmed against live FMCSA data. Confirm current operating authority directly with FMCSA. Source: FMCSA registration and licensing records.
Does Duncan & Son Lines INC have insurance on file with FMCSA?
Liability (BIPD) insurance on file for $1,000,000.
Who provides Duncan & Son Lines INC's insurance?
Duncan & Son Lines INC's liability insurance is filed with FMCSA by National Interstate Insurance Company.
What is Duncan & Son Lines INC's safety record?
In the last 24 months, FMCSA records show a 12.7% vehicle out-of-service rate for Duncan & Son Lines INC, from 42 of 330 vehicle inspections, against a national average of 22.9%. FMCSA records also show 14 recordable crashes in the same window.
What is Duncan & Son Lines INC's CSA score?
FMCSA does not publish a single CSA score for carriers. Duncan & Son Lines INC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Duncan & Son Lines INC's FMCSA safety rating?
Duncan & Son Lines INC's FMCSA safety rating is Satisfactory, from a review decided 2010-10-13.
Changes over time
Carriers change. Phone numbers, email addresses, insurance, authority. A sudden contact-info change is often the first sign of carrier identity fraud. fleetfax tracks these changes. Create a free account to follow changes on carriers you save.
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Reconstructed from cached and fleetfax-ingested FMCSA public records (live FMCSA was unavailable) and may be out of date; verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment. FMCSA status