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Authorized · PropertyUSDOT 133751· MC143871· CARRIER· EIN 42-1030198
⬇ PDF report

MS & SONS CORP

1605 SASSY LANE, HUMBOLDT, IA, 50548(515) 332-3303teri@mssons.comTERI DUNPHY
Vetting snapshot
Authority
Active
operating authority
Insurance
$2M BIPD
Starstone Specialty Insurance Company
Vehicle OOS
14.3%
below 22% national avg
Driver OOS
0%
below 6.7% national avg
Crashes 24mo
2
none fatal
Red flags
None
nothing flagged
96
/ 100

Risk factors

Low riskVioCodes score
2 crashes in the last 24 months

A weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.

Authority & insurance

MC143871

Operating authority and insurance on file — from FMCSA Licensing & Insurance (L&I).

Common
Active
Contract
None
Broker
None
Authorized for: Property
Liability (BIPD)
$2M on file
$5M required
Cargo
Not on file
not required
Bond / surety
Not on file
not required
Insurance filings
ON FILELiability (BIPD) — BMC-91X$2M coverageeff 09/01/2025
Starstone Specialty Insurance Company· policy AXS00516622P-04
ENDED 09/01/2025Liability (BIPD) — BMC-91X$1M coverageeff 08/06/2021
Great West Casualty Co· policy MCP74021A
ENDED 08/06/2021Liability (BIPD) — BMC-91X$2M coverageeff 10/01/2020
Crum & Forster Specialty Insurance Company· policy SEO-109833
Authority history (6) ▾
10/13/2020COMMONINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (11/12/2020)
09/04/2018COMMONINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (10/03/2018)
11/03/2011COMMONINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (11/10/2011)
07/08/1985MOTOR PROPERTY COMMON CARRIERGRANTED
05/29/1981MOTOR PROPERTY COMMON CARRIERGRANTED
02/26/1979MOTOR PROPERTY COMMON CARRIERGRANTED
Insurance history9 insurers on record
Filing timeline (20) ▾
  1. STARSTONE SPECIALTY INSURANCE COMPANY$2MReplaced
    BIPD/Excess · eff 05/10/2023 → 09/01/2025
  2. HALLMARK SPECIALTY INSURANCE COMPANY$2MReplaced
    BIPD/Excess · eff 10/01/2020 → 05/10/2023
  3. GREENWICH INSURANCE COMPANY$1MReplaced
    BIPD/Primary · eff 10/01/2018 → 08/06/2021
  4. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$1MCancelled
    BIPD/Excess · eff 10/01/2020 → 12/10/2020
  5. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$2MCancelled
    BIPD/Excess · eff 10/01/2020 → 11/07/2020
  6. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$3MCancelled
    BIPD/Excess · eff 10/01/2020 → 11/07/2020
  7. ARCH INSURANCE COMPANY$4MReplaced
    BIPD/Excess · eff 10/01/2019 → 10/01/2020
  8. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$2MReplaced
    BIPD/Excess · eff 10/01/2020 → 10/01/2020
  9. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$2MReplaced
    BIPD/Excess · eff 10/01/2020 → 10/01/2020
  10. CRUM & FORSTER SPECIALTY INSURANCE COMPANY$1MReplaced
    BIPD/Excess · eff 10/01/2020 → 10/01/2020
  11. ARCH INSURANCE COMPANY$4MReplaced
    BIPD/Excess · eff 10/01/2018 → 10/01/2019
  12. GREAT WEST CASUALTY CO.$1MCancelled
    BIPD/Primary · eff 10/01/2012 → 10/01/2018
  13. GREAT WEST CASUALTY CO.$4MCancelled
    BIPD/Excess · eff 10/01/2012 → 10/01/2018
  14. FARM BUREAU MUTUAL INSURANCE CO.$5MCancelled
    CARGO · eff 05/01/2008 → 07/29/2015
  15. CLASSIC INSURANCE CO$1MCancelled
    BIPD/Primary · eff 11/30/2011 → 10/26/2012

Source: FMCSA Licensing & Insurance (L&I), public data. This shows the carrier’s federal insurance filings (BMC-91X liability, BMC-34 cargo) — the federally-required minimums on file for operating authority — not the carrier’s full commercial policy (its actual auto combined-single-limit, general liability, cargo, or workers’ comp, which appear on the carrier’s ACORD certificate of insurance). Always confirm current coverage with a COI from the carrier’s agent before making a vetting decision.

Roadside inspection performance

Out-of-service rate vs national average. Lower is better.

Vehicle14 inspections · 14.3% OOS · National 22%
Driver37 inspections · 0% OOS · National 6.7%

CSA performance breakdown

FMCSA · Sep 2026

37 inspections · 36 violations (2 OOS) · 7% of inspections had an OOS finding.

37
Inspections
36
Violations
2
OOS violations
10
Distinct codes

Violations by BASIC

click to filter codes

15
total

Top cited codes

score = count × severity weight

Most inspected in · top 7 states

  • IA21
  • MN2
  • WI2
  • SD2
  • NE1
  • IL1
  • KS1

Latest FMCSA SMS snapshot. Codes link to the lookup — severity weighting, contest angles, and the DataQs Drafter for each. Click a BASIC to filter the codes.

Recommendations

What’s driving each score, what to do about it, and where it could go.

A high share of violations are occurring in IA

Medium impact

13 of 18 violations in the last 12 months (72%) came from inspections in IA. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.

What to do
  • Review the inspections from IA to spot recurring issues
  • Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical

Speeding violations are the leading contributor to Unsafe Driving

Low impact

Estimated Unsafe Driving percentile of 49% is under the 60% line. In decent shape, but here's what's driving it.

What’s contributing13 violations (24 mo)
Speeding8 viol59%
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit8× · 59%
Seat belt2 viol15%
  • 392.16Failing to use seat belt while operating a CMV2× · 15%
Other1 viol11%
  • 392.2-INATDriver- Inattentive or Distracted Driving1× · 11%
Phone / texting1 viol11%
  • 392.82DUMTDriver - Using a hand-held mobile telephone1× · 11%
What to do
  • Coach the drivers with speeding violations directly — Unsafe Driving points are weighted heavily
  • Set and enforce a governed road speed; review telematics/dashcam speed events weekly
Projected estimatecould improve up to 32 pts in ~12 mo
nowin 12 months
Current trend 50% followed 100% followed 60% line

Controlled Substances/Alcohol needs attention

Low impact

Estimated Controlled Substances/Alcohol percentile of 0% is under the 75% line. In decent shape, but here's what's driving it.

What to do
  • Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment

Brakes violations are the leading contributor to Vehicle Maintenance

Low impact

Estimated Vehicle Maintenance percentile of 48% is under the 75% line. In decent shape, but here's what's driving it.

What’s contributing12 violations · 3 OOS (24 mo)
Brakes1 OOS6 viol48%
  • 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear1× · 15%
  • 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured3× · 15%
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19981× · 10%
Tires2 OOS2 viol32%
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS1× · 25%
  • 393.75G-LOADWeight carried exceeds tire load limit1× · 6%
Lighting / lamps3 viol19%
  • 393.9A-HLLHLighting - Headlamp(s) fail to operate on low and high beam1× · 8%
  • 393.11A1-LBLLighting - Backup lamp missing1× · 8%
  • 393.11A1-CSLRRConspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 19971× · 4%
Other1 viol1%
  • 393.78A-WSWashers - Inoperative washing system.1× · 1%
What to do
  • Check brake adjustment and listen for air leaks every pre-trip; put brakes on the PM schedule
  • Fix air-loss and warning-light faults before dispatch — don’t “drive it in”
  • Prioritize the out-of-service items — they carry the heaviest weight
Projected estimatecould improve up to 33 pts in ~12 mo
nowin 12 months
Current trend 50% followed 100% followed 75% line

Recommendations are generated from the carrier’s public FMCSA roadside-inspection record. Percentiles and projections are VioCodes estimates, not official FMCSA figures. Informational, not legal advice.

90-day safety improvement plan

What this carrier has struggled with most in the last 90 days — where to focus now.

▲ Trending worse
4
Inspections
8
Violations
0
Out-of-service
1
Clean
Where the violations are
Other 75%Vehicle Maintenance 13%Unsafe Driving 13%
Focus here first
1Other
6 violations · 75% of recent
  • 392.2-SLLEWA1×2State/Local Laws - Excessive weight - 1-2500 lbs over on an axle/axle groups
  • 393.47EBrake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
  • 393.47A-LJNBrakes - Loose/Missing Jam Nut
Do this
  • Look under the truck for shifted axles and broken/leaking suspension parts
  • Include suspension in scheduled maintenance
2Vehicle Maintenance
1 violation · 13% of recent
  • 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
Do this
  • Check brake adjustment and listen for air leaks every pre-trip
  • Fix air-loss and warning-light faults before dispatch; put brakes on the PM schedule
3Unsafe Driving
1 violation · 13% of recent
  • 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit
Do this
  • Coach speed and following distance — Unsafe Driving points are weighted heavily
  • Hands off the phone; always belt up
Repeat offenders (same code, multiple times)
392.2-SLLEWA1×2
🎓
Turn these into driver coaching — and prove it
FleetTrained (my companion project) makes branded, multilingual training videos for these exact violations — your driver watches and gets a completion certificate for the file.

Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.

Inspection & crash map

live · FMCSA MCMIS

Every inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).

59
Inspections
76
Violations
3
Out-of-service
180
CSA points
31
Crashes
10
States
cleanviolOOS

CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.

Equipment

VINs via NHTSA

69 distinct vehicles seen in this carrier’s roadside inspections.

37 trailer 25 truck 6 incomplete vehicle 1 other
PETERBILT 389seen 5×
1NPXGGGG00D248885· VA7059 IA
PETERBILT 389seen 4×
1NPXGGGG80D390031· VE3833 IA
2002 PETERBILT 379seen 4×
1XP5DB9X22N574187· VF4068 IA
PTRBseen 3×
0V2100005168863NE· FS1518 IA
2019 VANGUARD NATIONAL TRAILER CORPORATION (VNTC) VANGUARD NATIONAL TRAILER CORPORATION (VNTC)seen 3×
5V8VC5325KM903227· FJ2071 IA
1994 BRENNER TANK Brenner Tankseen 3×
10BABB232RF411458· FV9799 IA
2000 INTERNATIONAL 9200iseen 3×
2HSCEAMR7YC068563· VF4067 IA
2010 CUSMseen 3×
5WSAE4229AN041737· FS3705 IA
2018 PETERBILT 389seen 3×
1XPXD49X8JD462597· FY2727 IA
2021 POLAR TANK TRAILER Polar Tank Trailerseen 2×
1PMKR4325M1112842· KC3474 IA
2015 WESTMOR INDUSTRIES Westmor Industriesseen 2×
1W9PH4028FM350061· VB3696 IA
2006 PETERBILT 379seen 2×
1XP5DB9X96N644869· VF2717 IA
2020 FREIGHTLINER Coronadoseen 2×
3ALXFB008LDMP2200· VF2169 IA
2008 PETERBILT 389seen 2×
1XPXDB9X18D751691· VA3840 IA
2019 PETERBILT 389seen 2×
1NPXD49X6KD273796· VA9545 IA
2021 POLAR TANK TRAILER Polar Tank Trailerseen 2×
1PMKW4528M6106008· FJ8650 IA
PETERBILT 389seen 2×
1NPXGGGG30D267415· VB1016 IA
2009 POLAR TANK TRAILER Polar Tank Trailerseen 2×
1PMS1432X91035593· FB4723 IA
2021 POLAR TANK TRAILER Polar Tank Trailerseen 2×
1PMKR4329M1112844· KC3472 IA
PETERBILT 389seen 2×
1NPXGGGG00D248806· VA8165 IA
2015 PETERBILT 389seen 2×
1XPXDP9X6FD283063· VF3012 IA
2014 WESTMOR INDUSTRIES Westmor Industriesseen 2×
1W9PH4021EM350546· DX0083 IA
2014 POLAR TANK TRAILER Polar Tank Trailerseen 2×
1PMS14222E1042582· DB0753 IA
2000 PETERBILT 379seen 2×
1XP5DB9X4YN523993· TEMP IA
2003 PETERBILT 379seen 2×
1XP5DB9X63N805545· VF5829 IA
2011 UTILITY TRAILER MANUFACTURER Utility Trailer Manufacturerseen 2×
1UYVS2531BG143212· FY4772 IA
2019 KENWORTH W9 Seriesseen 2×
1XKWD49X4KJ250462· VF3012 IA
2018 POLAR TANK TRAILERseen 2×
1PMS14221J1049825· FV6561 IA
2020 KENWORTH T880seen 2×
1XKZDP9X7LJ409586· FY6992 IA
2016 TIMPTE, INC Timpteseen 2×
1TDH42223GB152449· BV9785 IA

+ 39 more.

Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.

Crash record (US, last 24 months)

Total

2

Tow-away

2

Injury

0

Fatal

0

Company profile

FMCSA census

AUTHORIZED FOR HIRE

Power units
40
on file (MCS-150)
Drivers
42
42 hold a CDL
Annual mileage
2.4M mi
reported 2024
Recordable crash rate
—
per million miles
How far they run · drivers by operating lane
  • Interstate · 100+ mi42 drivers
Company officer
TERI DUNPHY
Operation
Interstate · Hazmat
D-U-N-S
55588420
Registered since
1974-06-01
Last MCS-150 update
2026-04-03
Census status
Active

Fleet: 40 trucks · 31 owned tractors · 66 owned trailers · 9 leased/term tractors.

Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.

Connections

carrier graph

This carrier shares VINs, phone numbers, officers or emails with 7 other carriers — review the connections below as part of your vetting.

7
Connected carriers
5
Fleet-transfer links
1
Most shared VINs
1
Strong links
Strong· 1
1
AID ENTERPRISES LLC
USDOT 1331978Active· HUMBOLDT, IA
Strong
OfficerEmail

Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.

Activity history

28 events
  1. 04/03/2026MCS-150 update filed

    2.4M mi reported (2024)

  2. 09/01/2025Insurance filed — Starstone Specialty Insurance Company

    Liability (BIPD) — BMC-91X · policy AXS00516622P-04

  3. 09/01/2025Insurance ended — Great West Casualty Co

    policy MCP74021A

  4. 09/01/2025Insurance replaced — STARSTONE SPECIALTY INSURANCE COMPANY

    BIPD/Excess · policy AXS7000138#1

  5. 05/10/2023Insurance replaced — HALLMARK SPECIALTY INSURANCE COMPANY

    BIPD/Excess · policy 77HX20591D

  6. 08/06/2021Insurance filed — Great West Casualty Co

    Liability (BIPD) — BMC-91X · policy MCP74021A

  7. 08/06/2021Insurance ended — Crum & Forster Specialty Insurance Company

    policy SEO-109833

  8. 08/06/2021Insurance replaced — GREENWICH INSURANCE COMPANY

    BIPD/Primary · policy AEC0052807

  9. 12/10/2020Insurance cancelled — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    BIPD/Excess · policy SE0-109833

  10. 11/07/2020Insurance cancelled — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    BIPD/Excess · policy SEO-109833

  11. 10/13/2020COMMON — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (11/12/2020)

  12. 10/01/2020Insurance filed — Crum & Forster Specialty Insurance Company

    Liability (BIPD) — BMC-91X · policy SEO-109833

  13. 10/01/2020Insurance replaced — ARCH INSURANCE COMPANY

    BIPD/Excess · policy UXP102474001

  14. 10/01/2020Insurance replaced — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    BIPD/Excess · policy SEO-109833

  15. 10/01/2019Insurance replaced — ARCH INSURANCE COMPANY

    BIPD/Excess · policy UXP102474000

  16. 10/01/2018Insurance cancelled — GREAT WEST CASUALTY CO.

    BIPD/Primary · policy GWP99188A

  17. 09/04/2018COMMON — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (10/03/2018)

  18. 07/29/2015Insurance cancelled — FARM BUREAU MUTUAL INSURANCE CO.

    CARGO · policy CPP0007415

  19. 10/26/2012Insurance cancelled — CLASSIC INSURANCE CO

    BIPD/Primary · policy CA 8232963

  20. 10/01/2012Insurance replaced — CLASSIC INSURANCE CO

    BIPD/Primary · policy CA 8232963

  21. 11/30/2011Insurance cancelled — CLASSIC INSURANCE CO

    BIPD/Primary · policy CA 8232963

  22. 11/03/2011COMMON — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (11/10/2011)

  23. 09/08/2011Insurance replaced — FARM BUREAU MUTUAL INSURANCE CO.

    BIPD/Primary · policy CPP0007415

  24. 05/01/2008Insurance replaced — FARM BUREAU MUTUAL INSURANCE CO.

    BIPD · policy 906714

  25. 07/08/1985MOTOR PROPERTY COMMON CARRIER — GRANTED
  26. 05/29/1981MOTOR PROPERTY COMMON CARRIER — GRANTED
  27. 02/26/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
  28. 06/01/1974Registered with FMCSA

    AUTHORIZED FOR HIRE

Merged from FMCSA authority, insurance, out-of-service, and census records.

🚛

Operations

Classification

  • AUTHORIZED FOR HIRE

Area served

  • Interstate
★

FMCSA safety rating

Rating
Satisfactory
Type
Compliance review
Rated
2025-04-14
Last review
2025-04-09
📄

MCS-150 registration

Form date
2026-04-03
Reported mileage
2,427,838 mi (2024)
📜

Changes on file

FMCSA census history

  1. June, 2021

    • Fleet shrank to 33 power units
    • Drivers shrank to 31

  2. January, 2021

    First on-record entry — M S & SONS CORP, HUMBOLDT, IA

⚡

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ⓘ
Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Sep 2026 · Page refreshed: Sep 22, 2026, 7:29 PM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.