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Duncan & Son Lines Inc

USDOT activeAuthority activeCarrier & Broker · InterstateHazmat
  • USDOT44035
  • MC144606
  • LocationBuckeye, AZ
  • Phone(623) 386-4511
  • Fleet259 power units · 231 drivers

Duncan & Son Lines Inc (USDOT 44035, MC-144606) is an interstate motor carrier based in Buckeye, Arizona with 259 power units and 231 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 430 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 11, 2026

Operating authorityActive · MC-144606Carrier, BrokerLiability insurance$1,000,000 on fileRequired: $750,000Safety ratingSatisfactoryRated Oct 13, 2010Out-of-service ordersNone on fileFMCSA out-of-service orders fileRegistration (MCS-150)Updated Feb 10, 20269 months agoProcess agent (BOC-3)On fileEvilsizor Process Servers Inc

Got a call or email from someone using this company’s name? Check the phone number or email against FMCSA records.

Operating authority

Status from the FMCSA Company Census File, November 11, 2026

DocketAuthority typeStatus
MC-144606Common carrierContract carrierBrokerActive

First granted on January 17, 1979 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 12, 2026

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$1,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileYes / No

Filings on file

No current insurance filing was found in FMCSA licensing records for this USDOT number.

Insurance history: 23 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)National Interstate Insurance CompanyDec 31, 2020Sep 15, 2021Replaced
Liability (BIPD)National Interstate Insurance CompanyOct 1, 2018Dec 31, 2020Replaced
Liability (BIPD)National Interstate Insurance CompanyOct 1, 2014Oct 1, 2018Replaced
CargoNational Interstate Insurance CompanyJan 1, 2011Nov 7, 2015Cancel
Liability (BIPD)National Interstate Insurance CompanyJan 1, 2011Oct 1, 2014Replaced
CargoMax Specialty Insurance CompanyMar 1, 2008Jan 1, 2011Replaced
Liability (BIPD)National Interstate Insurance CompanySep 1, 2006Sep 1, 2006Replaced
Liability (BIPD)Canal Insurance Co.Jul 17, 2006Sep 1, 2006Cancel
CargoHartford Fire Insurance CompanyMar 1, 2006Mar 1, 2008Replaced
Liability (BIPD)Canal Insurance Co.Sep 1, 2005Aug 12, 2006Term / cancl
CargoNational Farmers Union Prop. and Cas. Co.Mar 1, 2005Mar 1, 2006Replaced
Liability (BIPD)Canal Insurance Co.Nov 15, 2004Sep 1, 2005Cancel
Liability (BIPD)Canal Insurance Co.Sep 1, 2004Dec 16, 2004Term / cancl
CargoUnderwriters at Lloyds LondonFeb 29, 2004Mar 1, 2005Cancel
Liability (BIPD)Canal Insurance Co.Sep 1, 2003Sep 1, 2004Cancel
CargoUnderwriters at Lloyds LondonSep 1, 2003Feb 29, 2004Replaced
Liability (BIPD)Wilshire Insurance CompanySep 1, 2002Sep 1, 2003Cancel
CargoWilshire Insurance CompanySep 1, 2002Sep 1, 2003Cancel
CargoWilshire Insurance CompanySep 1, 1995Sep 1, 2002Cancel
Liability (BIPD)Wilshire Insurance CompanySep 1, 1995Sep 1, 2002Cancel
Liability (BIPD)Great West Casualty Co.Sep 11, 1990Sep 1, 1995Cancel
CargoGreat West Casualty Co.Sep 11, 1990Sep 1, 1995Cancel
Broker surety bondMerchants Bonding Company ( Mutual)Jan 16, 1986May 16, 2013Cancel

Process agent (BOC-3)

Evilsizor Process Servers Inc, Littleton, CO

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

430
Inspections
225 with no violations
1.2%
Driver out-of-service
5 of 429 inspections
12.6%
Vehicle out-of-service
42 of 333 inspections
14
Crashes
0 fatal · 4 injury · 10 tow-away

Inspected most often in: California (241), Arizona (71), New Mexico (32), Texas (23), Arkansas (12).

Most recent inspection on file: November 9, 2026.

FMCSA safety rating: Satisfactory (rated October 13, 2010)

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary revocation — Common carrier authority; Contract carrier authorityDiscontinued revocation on September 17, 2021
  2. Involuntary revocation — Broker authority
  3. Involuntary revocation — Common carrier authority; Contract carrier authorityDiscontinued revocation on September 5, 2006
  4. Involuntary revocation — Common carrier authority; Contract carrier authorityDiscontinued revocation on July 18, 2006
  5. Reinstated — Common carrier authority; Contract carrier authority
  6. Involuntary revocation — Common carrier authority; Contract carrier authority
  7. Reinstated — Common carrier authorityRevoked on September 7, 2005
  8. Involuntary revocation — Common carrier authority
Show 25 earlier events
  1. Involuntary revocation — Common carrier authority; Contract carrier authorityDiscontinued revocation on September 8, 2004
  2. Involuntary revocation — Common carrier authorityDiscontinued revocation on March 31, 2004
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on November 6, 2003
  4. Involuntary revocation — Common carrier authority; Contract carrier authorityDiscontinued revocation on October 25, 1995
  5. Involuntary revocation — Broker authorityDiscontinued revocation on June 24, 1991
  6. Involuntary revocation — Contract carrier authorityDiscontinued revocation on October 16, 1987
  7. Involuntary revocation — Common carrier authorityDiscontinued revocation on October 14, 1987
  8. Granted — Contract carrier authorityRevoked on September 7, 2005
  9. Granted — Property BrokerRevoked on May 22, 2013
  10. Granted — Common carrier authorityRevoked on March 7, 2005
  11. Granted — Common carrier authorityRevoked on July 31, 1984
  12. Granted — Common carrier authorityRevoked on March 7, 2005
  13. Granted — Common carrier authorityRevoked on July 31, 1984
  14. Granted — Common carrier authorityRevoked on March 7, 2005
  15. Granted — Common carrier authorityRevoked on March 7, 2005
  16. Granted — Contract carrier authorityRevoked on July 31, 1984
  17. Granted — Common carrier authorityRevoked on March 7, 2005
  18. Granted — Common carrier authoritySuperseded on January 29, 1982
  19. Granted — Common carrier authoritySuperseded on January 29, 1982
  20. Granted — Common carrier authoritySuperseded on January 29, 1982
  21. Granted — Common carrier authoritySuperseded on January 29, 1982
  22. Granted — Common carrier authorityRevoked on March 7, 2005
  23. Granted — Common carrier authoritySuperseded on January 29, 1982
  24. Granted — Common carrier authorityRevoked on March 7, 2005
  25. Granted — Common carrier authoritySuperseded on January 29, 1982

Fleet and operations

From the company’s own registration (Form MCS-150), updated February 10, 2026

Power units
259
Trucks
259
Drivers
231
CDL drivers
231
Interstate drivers
231
Miles traveled
23,801,483 (2025)
Classification
Authorized for hire
Hazardous materials
Yes
USDOT registered
June 1, 1974
Address
23860 W US Hwy 85, Buckeye, AZ 85326
Phone (registered with FMCSA)
(623) 386-4511
Other active USDOT records at this address
1

Cargo carried

  • General freight
  • Metal: sheets, coils, rolls
  • Building materials
  • Machinery, large objects
  • Intermodal containers
  • Grain, feed, hay
  • Meat
  • Chemicals
  • Refrigerated food
  • Paper products
  • Construction
  • Scrap metal

Key facts

  • USDOT number 44035 was registered on June 1, 1974.
  • Operating authority MC-144606 was first granted on January 17, 1979.
  • The company last updated its FMCSA registration (Form MCS-150) on February 10, 2026.
  • It reported 23,801,483 vehicle miles traveled in 2025.
  • It had 430 roadside inspections in the last 24 months; 225 inspections recorded no violations.
  • FMCSA records list 14 reportable crashes in the last 24 months.
  • Its most recent FMCSA safety rating is Satisfactory, issued on October 13, 2010.
  • Its process agent filing (BOC-3) is with Evilsizor Process Servers Inc.

Other carriers in Buckeye, AZ

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