# DUNCAN & SON LINES INC (USDOT 44035)

> DUNCAN & SON LINES INC (USDOT 44035) has a Vektor safety score of 88/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Aug 20, 2026.
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> The carrier holds active common and contract for-hire operating authority per FMCSA L&I as of Aug 20, 2026.
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> It has an active BIPD insurance filing with a $1,000,000 limit in force from NATIONAL INTERSTATE INSURANCE COMPANY effective Sep 15, 2021 in FMCSA L&I's current snapshot as of Aug 20, 2026.
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> Its vehicle out-of-service rate was 13.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Aug 20, 2026.
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> The carrier received 420 roadside inspections in the last 24 months — 330 vehicle-level and 419 driver-level — across 21 states, according to FMCSA roadside-inspection data refreshed Aug 20, 2026.
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> The carrier has 14 reportable crashes in the last 24 months and 6 fatal crashes across the full FMCSA crash record available as of Aug 20, 2026.
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> It reports 259 power units and 231 drivers in its most recent MCS-150 filing dated Feb 10, 2026.
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> It has an FMCSA safety rating of Satisfactory assigned Oct 13, 2010 in the federal record refreshed Aug 20, 2026.

## Verdict
- Vektor verdict: Clear to load
- Vektor safety score: 88/100 (0–100, higher is safer)
- FMCSA snapshot: Aug 20, 2026

## Authority & insurance
- Common for-hire authority: Active
- Contract for-hire authority: Active
- Broker authority: Inactive
- BIPD insurance: Active filing — $1,000,000 limit · NATIONAL INTERSTATE INSURANCE COMPANY · effective Sep 15, 2021

## Safety — FMCSA roadside record, trailing 24 months
- Roadside inspections (24 months): 420 — 330 vehicle-level, 419 driver-level
- Vehicle out-of-service rate (24 months): 13.0% — vs 22.26% CVSA national average, at or below benchmark
- Driver out-of-service rate (24 months): 1.2% — vs 6.67% CVSA national average, at or below benchmark
- Reportable crashes (24 months): 14
- Fatal crashes (full FMCSA record): 6
- FMCSA safety rating (separate federal field): Satisfactory, assigned Oct 13, 2010

## Fleet
- Power units: 259
- Drivers: 231
- Most recent MCS-150 filing: Feb 10, 2026

## Identity
- USDOT: 44035
- Docket: MC-144606
- Legal name: DUNCAN & SON LINES INC
- Domicile: BUCKEYE, AZ
- Hazmat: Yes
- Registered with FMCSA: Jun 1, 1974
- States with observed roadside inspections: 21

Source: FMCSA public records via the U.S. DOT Open Data Portal · data as of Aug 20, 2026. A Vektor verdict is deterministic decision support computed from that record — not an FMCSA safety rating and not an endorsement.

Canonical profile: https://vektortms.com/directory/trucking-companies/duncan-son-lines-inc-usdot-44035