Open demo
Carrier profile · USDOT 133751 · MC-143871 · FMCSA data fetched 2026-10-10

MS & SONS CORP

40 power units42 driversInterstateHUMBOLDT, IA

Census status Active (A)MC-143871 · code A
Official links FMCSA SAFER

Data completeness & update times

Per official source. A failed read is not zero; “not yet imported” means the directory database has no stored copy yet — not “no authority” or “no insurance”.

SectionSourceSource updatedFetchedStatus
Registration (Census)az4n-8mr22026-10-10 PTOct 10, 03:20 PM PTRead
Operating authorityinys-ebih2026-10-10 PTOct 10, 03:20 PM PTRead
Authority historyyu5v-wbh62026-10-10 PTOct 10, 03:20 PM PTRead
Insurance filingsc5y8-a4uz2026-10-10 PTOct 10, 03:20 PM PTRead
Insurance history3uet-3z4i2026-10-10 PTOct 10, 03:20 PM PTNot provided by official source
Insurance history (legacy)Content frozen by FMCSA on 2026-05-14 (portal metadata 2026-10-10 is a republish, not new data); gap-fill only6sqe-dvqs2026-05-14Oct 10, 03:20 PM PTStale (source > 90 days)
Inspections, 24 moDriver-level 35 · vehicle-level 13fx4q-ay7w2026-10-10 PTOct 10, 03:20 PM PTRead
Crashes, 24 moaayw-vxb32026-10-10 PTOct 10, 03:20 PM PTRead
Directory DB: authority copyLive official read above is used for the profilecarrier_authorityNot providedOct 9, 08:40 PM PTRead
Directory DB: insurance copycarrier_insuranceNot providedOct 7, 06:49 PM PTRead

VAX record reference score

Beta · trial v1

Not an FMCSA rating, not a prediction and not a load decision. Thresholds are fixed and not yet calibrated.

Reference score (0–100)

98

Coverage — determinable weight, not a score

100/100

Crashes, 24 mo (shown only, not scored)

2

How this trial score works and its limits →

01

Safety

Source: SMS AB PassProperty (4y6x-dmck) · raw queryDataset updated 2026-09-13 07:02 UTCFetched 2026-10-10 22:20 UTC

Inspections

37

Driver insp.

37

OOS 0

Vehicle insp.

14

OOS 2

Safety rating

S

2025-04-14

Driver out-of-service rate0.0%
0%50%100%

0 out-of-service of 37 inspections

Vehicle out-of-service rate14.3%
0%50%100%

2 out-of-service of 14 inspections

Rate = OOS inspections ÷ inspections, from the SMS summary; N/A when there are 0 inspections. The SMS summary has no monthly series; the monthly chart below is built from record-level inspections. Roadside inspections are a sample, not the whole fleet.

Roadside inspections · record level

Source: Vehicle Inspection File (fx4q-ay7w) · raw queryDataset updated 2026-10-10 10:55 UTCFetched 2026-10-10 22:20 UTC

Window: 2024-10-10 → 2026-10-10 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.

Inspections (records)

35

States observed

7

Driver-level insp.

35

with driver OOS 0 · 0.0%

Vehicle-level insp.

13

with vehicle OOS 1 · 7.7%

Monthly inspections & out-of-service rate · 24 months

Inspections per month (count)

02424-1025-0125-0425-0725-1026-0126-0426-0726-10
  • Vehicle-level inspections (I, II, V, VI)
  • Driver-level inspections (I, II, III, VI)

Out-of-service rate by month (%)

0%25%50%75%100%24-1025-0125-0425-0725-1026-0126-0426-0726-10
  • Vehicle OOS rate
  • Driver OOS rate (dashed)
  • Hollow point = fewer than 5 eligible inspections

Computed from record-level inspections in fx4q-ay7w (window 2024-10-10 → 2026-10-10, fetched 2026-10-10 22:20 UTC). OOS rate = inspections with driver/vehicle OOS > 0 ÷ inspections at a driver/vehicle-examining level — not violation counts. Months with no eligible inspection leave a gap (not 0%). The SMS summary is not used to build history.

Driver-level = Levels I, II, III, VI; vehicle-level = Levels I, II, V, VI (FMCSA North American Standard levels). Level IV special studies are in neither. These record-level counts can differ from the SMS summary above, which uses its own snapshot and is left unchanged.

DateStateLevelViolationsOOSDriver viol/OOSVehicle viol/OOSID
2026-09-29MN1300 / 03 / 089185032
2026-08-18MN1300 / 03 / 088787965
2026-08-12IA3303 / 00 / 088677804
2026-07-21IA2201 / 01 / 088479641
2026-07-14IA3000 / 00 / 088405768
All 35 inspections, map and level breakdown →

Reported crashes

Source: Crash File (aayw-vxb3) · raw queryDataset updated 2026-10-10 15:53 UTCFetched 2026-10-10 22:20 UTC

Window: 2024-10-10 → 2026-10-10 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.

Crash reports

2

Fatalities

0

Injuries

0

Tow-away

2

Report dateCity, stateFatalitiesInjuriesTow-awayFederal recordableID
2026-01-03MILLADORE, WI00YesYes5103456
2025-09-26NO CITY COUNTY CRASH, IA00YesYes5067207

Crash reports are listed as filed by states; they do not determine fault or preventability. VIN, plate and exact location are not shown.

02

Authority & Insurance

Operating authority by docket

DocketAuthority typeStatusBI&PD req. / on file (source value)Cargo req./on fileBond req./on file
MC143871Motor Carrier of Property (Except Household Goods)Active1,000,000 / 5,000,000N / NN / N

Source: Motus Carrier – All With History (inys-ebih) · raw queryDataset updated 2026-10-10 10:58 UTCFetched 2026-10-10 22:20 UTC

Authority status history

FMCSA change dateDocketAuthority typeNew statusReason (source)
1985-07-08MC143871Motor Carrier of Property (Except Household Goods)ActiveGRANTED

Source: Motus AuthHist – All With History (yu5v-wbh6) · raw queryDataset updated 2026-10-10 10:58 UTCFetched 2026-10-10 22:20 UTC

Status and reason text are shown exactly as FMCSA publishes them. The change date is FMCSA's status_change_date; “Dataset updated” is when FMCSA last published the file, and “Fetched” is when VAX read it. The two authority files are shown side by side and are not reconciled by VAX. Amounts: the dictionary says “thousands”, but published values look like dollars, so raw values are shown. Census status is not authority.

Insurance filings

InsurerTypeFormPolicyMax / underlying (source)Effective
Starstone Specialty Insurance CompanyBI&PD · ExcessBMC-91XAXS00516622P-042,000,000 / 3,000,0002025-09-01
Great West Casualty CoBI&PD · PrimaryBMC-91XMCP74021A1,000,000 / 02021-08-06
Crum & Forster Specialty Insurance CompanyBI&PD · ExcessBMC-91XSEO-1098332,000,000 / 1,000,0002020-10-01

Source: Motus Insur – All With History (c5y8-a4uz) · raw queryDataset updated 2026-10-10 10:58 UTCFetched 2026-10-10 22:20 UTC

Filings as recorded by FMCSA — not a certificate of insurance or proof of current coverage. Amounts are source values (dictionary: thousands).

Source: Motus InsHist – All With History (3uet-3z4i) · raw queryDataset updated 2026-10-10 10:58 UTCFetched 2026-10-10 22:20 UTC

Source: InsHist – legacy (6sqe-dvqs) · raw queryDataset updated 2026-10-10 13:22 UTCFetched 2026-10-10 22:20 UTCFrozen by FMCSA since 2026-05-14

Prior policies

Insurance timeline
Hover a bar for insurer and dates.

Current filings (c5y8-a4uz) — effective date only

Starstone Specialty Insurance Company · 2025-09-01 → end not published

Great West Casualty Co · 2021-08-06 → end not published

Crum & Forster Specialty Insurance Company · 2020-10-01 → end not published

Prior policies (3uet-3z4i + legacy 6sqe-dvqs) — effective → cancellation

STARSTONE SPECIALTY INSURANCE COMPANY · 2023-05-10 → 2025-09-01

HALLMARK SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2023-05-10

GREENWICH INSURANCE COMPANY · 2018-10-01 → 2021-08-06

CRUM & FORSTER SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2020-12-10

CRUM & FORSTER SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2020-11-07

CRUM & FORSTER SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2020-11-07

ARCH INSURANCE COMPANY · 2019-10-01 → 2020-10-01

CRUM & FORSTER SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2020-10-01

CRUM & FORSTER SPECIALTY INSURANCE COMPANY · 2020-10-01 → 2020-10-01

ARCH INSURANCE COMPANY · 2018-10-01 → 2019-10-01

GREAT WEST CASUALTY CO. · 2012-10-01 → 2018-10-01

GREAT WEST CASUALTY CO. · 2012-10-01 → 2018-10-01

FARM BUREAU MUTUAL INSURANCE CO. · 2008-05-01 → 2015-07-29

CLASSIC INSURANCE CO · 2011-11-30 → 2012-10-26

CLASSIC INSURANCE CO · 2011-11-30 → 2012-10-01

CLASSIC INSURANCE CO · 2011-09-08 → 2011-11-30

FARM BUREAU MUTUAL INSURANCE CO. · 2008-05-01 → 2011-09-08

FARM BUREAU MUTUAL INSURANCE CO. · 1988-04-10 → 2008-05-01

FARM BUREAU MUTUAL INSURANCE CO. · 1988-04-10 → 2008-05-01

19962003201020172024
1988-04-102025-09-01

Bars run only between published effective and cancellation dates. Current filings show their effective date only — no end is assumed and no continuous coverage is inferred. Current history: 3uet-3z4i; legacy rows from 6sqe-dvqs (frozen 2026-05-14) are kept only when not already in the current file.

  • STARSTONE SPECIALTY INSURANCE COMPANY

    Effective
    2023-05-10
    Cancelled
    2025-09-01
    Method
    Replaced
    Policy
    AXS7000138#1
    Dataset
    6sqe-dvqs
  • HALLMARK SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2023-05-10
    Method
    Replaced
    Policy
    77HX20591D
    Dataset
    6sqe-dvqs
  • GREENWICH INSURANCE COMPANY

    Effective
    2018-10-01
    Cancelled
    2021-08-06
    Method
    Replaced
    Policy
    AEC0052807
    Dataset
    6sqe-dvqs
  • CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2020-12-10
    Method
    Cancelled
    Policy
    SE0-109833
    Dataset
    6sqe-dvqs
  • CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2020-11-07
    Method
    Cancelled
    Policy
    SEO-109833
    Dataset
    6sqe-dvqs
  • CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2020-11-07
    Method
    Cancelled
    Policy
    SEO-109833
    Dataset
    6sqe-dvqs
  • ARCH INSURANCE COMPANY

    Effective
    2019-10-01
    Cancelled
    2020-10-01
    Method
    Replaced
    Policy
    UXP102474001
    Dataset
    6sqe-dvqs
  • CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2020-10-01
    Method
    Replaced
    Policy
    SEO-109833
    Dataset
    6sqe-dvqs
  • CRUM & FORSTER SPECIALTY INSURANCE COMPANY

    Effective
    2020-10-01
    Cancelled
    2020-10-01
    Method
    Replaced
    Policy
    SE0-109833
    Dataset
    6sqe-dvqs
  • ARCH INSURANCE COMPANY

    Effective
    2018-10-01
    Cancelled
    2019-10-01
    Method
    Replaced
    Policy
    UXP102474000
    Dataset
    6sqe-dvqs
  • GREAT WEST CASUALTY CO.

    Effective
    2012-10-01
    Cancelled
    2018-10-01
    Method
    Cancelled
    Policy
    GWP99188A
    Dataset
    6sqe-dvqs
  • GREAT WEST CASUALTY CO.

    Effective
    2012-10-01
    Cancelled
    2018-10-01
    Method
    Cancelled
    Policy
    CCP04584A
    Dataset
    6sqe-dvqs
  • FARM BUREAU MUTUAL INSURANCE CO.

    Effective
    2008-05-01
    Cancelled
    2015-07-29
    Method
    Cancelled
    Policy
    CPP0007415
    Dataset
    6sqe-dvqs
  • CLASSIC INSURANCE CO

    Effective
    2011-11-30
    Cancelled
    2012-10-26
    Method
    Cancelled
    Policy
    CA 8232963
    Dataset
    6sqe-dvqs
  • CLASSIC INSURANCE CO

    Effective
    2011-11-30
    Cancelled
    2012-10-01
    Method
    Replaced
    Policy
    CA 8232963
    Dataset
    6sqe-dvqs
  • CLASSIC INSURANCE CO

    Effective
    2011-09-08
    Cancelled
    2011-11-30
    Method
    Cancelled
    Policy
    CA 8232963
    Dataset
    6sqe-dvqs
  • FARM BUREAU MUTUAL INSURANCE CO.

    Effective
    2008-05-01
    Cancelled
    2011-09-08
    Method
    Replaced
    Policy
    CPP0007415
    Dataset
    6sqe-dvqs
  • FARM BUREAU MUTUAL INSURANCE CO.

    Effective
    1988-04-10
    Cancelled
    2008-05-01
    Method
    Replaced
    Policy
    906714
    Dataset
    6sqe-dvqs
  • FARM BUREAU MUTUAL INSURANCE CO.

    Effective
    1988-04-10
    Cancelled
    2008-05-01
    Method
    Replaced
    Policy
    906714
    Dataset
    6sqe-dvqs
03

Equipment

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 22:20 UTC

Power units

40

Truck units

40

Bus units

0

EquipmentOwnedTerm leasedTrip leased
Straight trucks———
Truck tractors319—
Trailers661—
Ownership mix by equipment type
Straight trucksIncomplete source fields — no share computed—
Truck tractorsIncomplete source fields — no share computed—
TrailersIncomplete source fields — no share computed—
  • Owned
  • Term leased
  • Trip leased

Tractors and trailers are drawn separately and never merged into power units. A row with any empty field shows no share.

MCS-150 self-reported counts. “—” means the source field is empty, not zero.

Vehicles observed in roadside inspections

Units: FMCSA Inspections Per Unit (wt8s-2hbx)Decoder: NHTSA vPICDataset updated 2026-10-10 11:22 UTCFetched 2026-10-10 22:20 UTCWindow 2024-10-10 → 2026-10-10

35 inspection(s) → 70 unit row(s) → 53 unique vehicle(s) by VIN. 2 row(s) without a valid 17-character VIN were skipped. Observed vehicles are not the full fleet and not proof of current ownership. Labels like PU-01 are anonymous; full VINs and plates are never shown.

Power units observed

Unique units

23

Decode coverage

83%

19/23

Average age

20.3 yr

n=19

Newest / oldest

2023 / 1990

Make

  • PETERBILT14
  • KENWORTH3
  • INTERNATIONAL2

Model year

  • 19901
  • 19951
  • 19961
  • 20004
  • 20021
  • 20032
  • 20042
  • 20061
  • 20071
  • 20181
  • 20192
  • 20201
  • 20231

Average age = 2026 − model year, over 19 unit(s) with a decoded year. Units without a decode are excluded from every share.

Trailers observed

Unique units

29

Decode coverage

83%

24/29

Average age

13.4 yr

n=24

Newest / oldest

2026 / 1992

Make

  • POLAR TANK TRAILER12
  • WESTMOR INDUSTRIES6
  • BRENNER TANK2
  • IOWA STEEL FABRICATORS, LLC1
  • TIMPTE, INC1
  • UTILITY TRAILER MANUFACTURER1
  • WABASH TANKS1

Model year

  • 19922
  • 19941
  • 20001
  • 20091
  • 20101
  • 20111
  • 20122
  • 20132
  • 20143
  • 20151
  • 20162
  • 20215
  • 20251
  • 20261

Average age = 2026 − model year, over 24 unit(s) with a decoded year. Units without a decode are excluded from every share.

1 unit(s) could not be classified as power unit or trailer (not decoded).

Observed equipment list
UnitMakeModelYearBody classInspectionsLast seen
TR-01POLAR TANK TRAILERPolar Tank Trailer2012Trailer12026-09-29
PU-01PETERBILT3792000Truck-Tractor12026-09-29
TR-02POLAR MFG. (reported)———22026-08-18
PU-02PETERBILT3792006Truck-Tractor12026-08-18
TR-03POLAR TANK TRAILERPolar Tank Trailer2009Trailer12026-08-12
PU-03PETERBILT3792002Truck-Tractor22026-08-12
PU-04PETERBILT3791995Truck-Tractor12026-07-21
TR-04UTILITY TRAILER MANUFACTURERUtility Trailer Manufacturer2011Trailer22026-07-14
PU-05PETERBILT3792004Truck-Tractor12026-07-14
PU-06PETERBILT (reported)——Incomplete - Glider12026-04-23
04

Operations

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 22:20 UTC

Carrier operation

Interstate (A)

Classification: AUTHORIZED FOR HIRE

MCS-150 mileage

2,427,838 mi

Reported year 2024

Cargo classifications checked
  • General freight
  • Liquids/gases
  • Grain, feed, hay
  • Commodities dry bulk
  • Paper products
  • Agricultural/farm supplies
  • Other: FERTILIZER
Interstate drivers >100 mi / ≤100 mi
42 / 0
Intrastate drivers >100 mi / ≤100 mi
0 / 0
Hazmat indicator (hm_ind)
Y
Registered address
1605 SASSY LANE, HUMBOLDT, IA, 50548, US

Lanes and service areas are not published by FMCSA. The registered address is not an operating map, and inspection states are observations only — not live routes or a service area.

05

Identity & Federal

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 22:20 UTC

Legal name
MS & SONS CORP
DBA
Not provided
USDOT
133751
MC / FF / MX
MC-143871
Physical address
1605 SASSY LANE, HUMBOLDT, IA, 50548, US
Mailing address
PO BOX 334, HUMBOLDT, IA, 50548, US
Business type
CORPORATION
Carrier/shipper code
C
Census add date
1974-06-01
MCS-150 filing date
2026-04-03
Power units / drivers
40 / 42
Latest review (type · date)
C · 2025-04-09
06

Federal activity

  1. 2026-04-03Census

    Latest MCS-150 filing

  2. 2025-09-01c5y8-a4uz

    Insurance filing effective — Starstone Specialty Insurance Company

  3. 2025-09-016sqe-dvqs

    Prior policy ended (replaced) — STARSTONE SPECIALTY INSURANCE COMPANY

  4. 2025-04-14Census

    Official safety rating: S

  5. 2025-04-09Census

    Compliance review recorded (C)

  6. 2023-05-106sqe-dvqs

    Prior policy ended (replaced) — HALLMARK SPECIALTY INSURANCE COMPANY

  7. 2021-08-06c5y8-a4uz

    Insurance filing effective — Great West Casualty Co

  8. 2021-08-066sqe-dvqs

    Prior policy ended (replaced) — GREENWICH INSURANCE COMPANY

  9. 2020-12-106sqe-dvqs

    Prior policy ended (cancelled) — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

  10. 2020-11-076sqe-dvqs

    Prior policy ended (cancelled) — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

  11. 2020-11-076sqe-dvqs

    Prior policy ended (cancelled) — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

  12. 2020-10-01c5y8-a4uz

    Insurance filing effective — Crum & Forster Specialty Insurance Company

  13. 2020-10-016sqe-dvqs

    Prior policy ended (replaced) — ARCH INSURANCE COMPANY

  14. 2020-10-016sqe-dvqs

    Prior policy ended (replaced) — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

  15. 2020-10-016sqe-dvqs

    Prior policy ended (replaced) — CRUM & FORSTER SPECIALTY INSURANCE COMPANY

  16. 2019-10-016sqe-dvqs

    Prior policy ended (replaced) — ARCH INSURANCE COMPANY

  17. 2018-10-016sqe-dvqs

    Prior policy ended (cancelled) — GREAT WEST CASUALTY CO.

  18. 2018-10-016sqe-dvqs

    Prior policy ended (cancelled) — GREAT WEST CASUALTY CO.

  19. 2015-07-296sqe-dvqs

    Prior policy ended (cancelled) — FARM BUREAU MUTUAL INSURANCE CO.

  20. 2012-10-266sqe-dvqs

    Prior policy ended (cancelled) — CLASSIC INSURANCE CO

  21. 2012-10-016sqe-dvqs

    Prior policy ended (replaced) — CLASSIC INSURANCE CO

  22. 2011-11-306sqe-dvqs

    Prior policy ended (cancelled) — CLASSIC INSURANCE CO

  23. 2011-09-086sqe-dvqs

    Prior policy ended (replaced) — FARM BUREAU MUTUAL INSURANCE CO.

  24. 2008-05-016sqe-dvqs

    Prior policy ended (replaced) — FARM BUREAU MUTUAL INSURANCE CO.

  25. 2008-05-016sqe-dvqs

    Prior policy ended (replaced) — FARM BUREAU MUTUAL INSURANCE CO.

  26. 1985-07-08yu5v-wbh6

    Authority status change: Motor Carrier of Property (Except Household Goods) → Active (GRANTED)

  27. 1974-06-01Census

    Added to FMCSA registration

Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).

Changes observed by VAX monitoring

Loading…

07

FAQ

+What is MS & SONS CORP's USDOT number?

USDOT 133751, with docket(s) MC-143871.

+Is MS & SONS CORP active?

The census registration status code is A. This is a registration code only — it is not operating authority, insurance coverage or a safety certification.

+How many trucks and drivers does MS & SONS CORP report?

40 power units and 42 drivers, self-reported on the MCS-150 filed 2026-04-03.

+Does MS & SONS CORP have insurance on file?

3 filing row(s) matched in the FMCSA insurance dataset, most recently effective 2025-09-01 (Starstone Specialty Insurance Company). A filing is not a certificate of insurance.

+Where is MS & SONS CORP located?

Registered physical address: 1605 SASSY LANE, HUMBOLDT, IA, 50548, US. This is a registration address, not an operating area.

Answers are generated from the records on this page.

08

Nearby carriers

—

Sources

Each section shows its own fetch time; official data may have changed since. Official records plus an explainable trial record reference score (beta, not an official rating; no total when data is insufficient). No ranking, risk labels or load recommendations. Listing does not imply partnership, endorsement or platform access.