- Legal name
- Duncan & Son Lines INC
- USDOT number
- 44035
- MC docket
- MC144606
- Physical address
- 23860 W US Hwy 85, Buckeye, AZ, 85326
- j•••@d•••.com Unlock
- Power units
- 259
- Drivers
- 231
- Operation
- Interstate
- Operating radius
- Interstate 100+ mi
- Cargo
- General Freight, Metal: Sheets, Coils, Rolls, Building Materials, Machinery, Large Objects, Intermodal Containers, Grain, Feed, Hay
- Operation class
- Authorized For-Hire
- Last MCS-150 filing
- Feb 10, 2026
- Common authority
- Active
- Contract authority (as of 5/2026)
- Active
- Broker authority
- Inactive
- Authority granted
- Jun 1, 1974
- Insurer (writing paper)
- National Interstate
- Filing form
- BMC-91X
- Coverage amount
- $1,000,000
- BI/PD on file
- $1,000,000
- Estimated renewal window
- Q3 2026
Working this account? See the current renewal estimate free with the X-date lookup.
- FMCSA safety rating
- Satisfactory
- Roadside inspections (24 mo)
- 421
- Out-of-service inspections
- 48
- Inspections with violations
- 200
- Crashes (24 mo)
- 14
- BASICs with acute/critical violations
- 0
- SMS population
- Interstate
Is Duncan & Son Lines INC insured?
Yes. Duncan & Son Lines INC (USDOT 44035) has active BI/PD liability insurance on file with FMCSA, currently written by National Interstate, with $1,000,000 in coverage on the filing.
What insurance company does Duncan & Son Lines INC use?
Duncan & Son Lines INC's current BI/PD filing is written by National Interstate. Insurer changes show up in the daily-refreshed federal filing record.
What is Duncan & Son Lines INC's MC number?
Duncan & Son Lines INC's FMCSA docket is MC144606, paired with USDOT 44035.
Is Duncan & Son Lines INC safe to work with?
Duncan & Son Lines INC's FMCSA safety rating is Satisfactory, with 421 roadside inspections in the last 24 months, 14 recorded crashes, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page.
When does Duncan & Son Lines INC's insurance renew?
Based on its filing history, Duncan & Son Lines INC's BI/PD policy is estimated to renew in Q3 2026. The exact estimated X-date, with alerts when it changes, is in Market Tracker. Unlock USDOT 44035’s exact X-date →
How many trucks does Duncan & Son Lines INC operate?
Duncan & Son Lines INC reports 259 power units and 231 drivers in its latest MCS-150 census filing.
Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Sep 15, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.
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This page republishes the public FMCSA record for USDOT 44035. If you are connected to this carrier and want your details removed, request removal.