VioCodes logo
SearchMapNewCarriers
Lookup2
InsightsCalculatorDaily LogToolkit
DataQsBeta2
Guides7
Driver CoachingAPI
LoginRegisterTry FleetTrained
Authorized · PropertyUSDOT 227340· MC407667· CARRIER· EIN 52-0975889
⬇ PDF report

WILLIAM N MASON INC

3510 WILKENS AVE, BALTIMORE, MD, 21229(410) 525-2288bill@masoninc.comWILLIAM N. MASON
Vetting snapshot
Authority
Active
operating authority
Insurance
$750K BIPD
SENTRY SELECT INSURANCE COMPANY
Vehicle OOS
28.6%
above 22% national avg
Driver OOS
4.8%
below 6.7% national avg
Crashes 24mo
1
none fatal
Red flags
None
nothing flagged
83
/ 100

Risk factors

Low riskVioCodes score
Vehicle OOS 28.6% — above the 22% national average1 crash 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

MC407667

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

Common
None
Contract
Active
Broker
None
Authorized for: Property
Liability (BIPD)
$750K on file
$750K required
Cargo
Not on file
not required
Bond / surety
Not on file
not required
Insurance filings
ON FILELiability (BIPD) — BMC-91X$750K coverageeff 03/01/2023
SENTRY SELECT INSURANCE COMPANY· policy A0210955001
Authority history (11) ▾
06/03/2019MOTOR PROPERTY CONTRACT CARRIERREINSTATED
02/22/2019CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/04/2019)
02/09/2009CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/06/2009)
06/23/2008CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (06/26/2008)
02/11/2008CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/07/2008)
02/09/2007CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/09/2007)
02/09/2006CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/08/2006)
02/09/2005CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/11/2005)
06/04/2004CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (07/01/2004)
02/27/2004CONTRACTINVOLUNTARY REVOCATION→ DISCONTINUED REVOCATION (03/15/2004)
07/02/2001MOTOR PROPERTY CONTRACT CARRIERGRANTED→ REVOKED (05/28/2019)
Insurance history8 insurers on record
Filing timeline (16) ▾
  1. GREAT WEST CASUALTY CO.$1MReplaced
    BIPD/Primary · eff 03/08/2020 → 03/01/2023
  2. CANAL INSURANCE CO.$750KReplaced
    BIPD/Primary · eff 03/08/2019 → 03/08/2020
  3. PROGRESSIVE CASUALTY INSURANCE COMPANY$750KCancelled
    BIPD/Primary · eff 03/08/2019 → 05/22/2019
  4. NATIONAL INTERSTATE INSURANCE COMPANY$750KCancelled
    BIPD/Primary · eff 03/08/2009 → 03/21/2019
  5. NATIONAL INTERSTATE INSURANCE COMPANY$750KReplaced
    BIPD/Primary · eff 03/08/2009 → 03/08/2019
  6. CANAL INSURANCE CO.$750KReplaced
    BIPD/Primary · eff 03/08/2019 → 03/08/2019
  7. CAROLINA CASUALTY INSURANCE CO.$750KCancelled
    BIPD/Primary · eff 07/18/2008 → 03/08/2009
  8. CAROLINA CASUALTY INSURANCE CO.$750KCancelled
    BIPD/Primary · eff 03/08/2008 → 07/18/2008
  9. CAROLINA CASUALTY INSURANCE CO.$750KCancelled
    BIPD/Primary · eff 03/08/2007 → 03/08/2008
  10. CAROLINA CASUALTY INSURANCE CO.$750KCancelled
    BIPD/Primary · eff 03/08/2006 → 03/08/2007
  11. CAROLINA CASUALTY INSURANCE CO.$1MCancelled
    BIPD/Primary · eff 03/09/2005 → 03/08/2006
  12. CAROLINA CASUALTY INSURANCE CO.$1MCancelled
    BIPD/Primary · eff 07/01/2004 → 03/08/2005
  13. CAROLINA CASUALTY INSURANCE CO.$1MCancelled
    BIPD/Primary · eff 03/08/2004 → 07/01/2004
  14. CANAL INSURANCE CO.$1MCancelled
    BIPD/Primary · eff 03/08/2003 → 03/08/2004
  15. NATIONAL INDEMNITY COMPANY$1MCancelled
    BIPD/Primary · eff 03/08/2002 → 03/08/2003

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 · 28.6% OOS · National 22%
Driver21 inspections · 4.8% OOS · National 6.7%

Crash record (US, last 24 months)

Total

1

Tow-away

1

Injury

0

Fatal

0

Company profile

FMCSA census

AUTHORIZED FOR HIRE

Power units
15
on file (MCS-150)
Drivers
11
11 hold a CDL
Annual mileage
0.3M mi
reported 2024
Recordable crash rate
—
per million miles
How far they run · drivers by operating lane
  • Interstate · 100+ mi8 drivers
  • Interstate · <100 mi1 drivers
  • Intrastate · 100+ mi1 drivers
  • Intrastate · <100 mi1 drivers
Company officer
WILLIAM N. MASON
Operation
Interstate · Hazmat
D-U-N-S
64874597
Registered since
1983-01-19
Last MCS-150 update
2026-05-06
Census status
Active

Fleet: 15 trucks · 12 owned tractors · 77 owned trailers.

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

Data change history

Every FMCSA record change we’ve detected — address, fleet size, contacts, MCS-150 — newest first.

Activity history

30 events
  1. 05/06/2026MCS-150 update filed

    0.3M mi reported (2024)

  2. 03/01/2023Insurance filed — SENTRY SELECT INSURANCE COMPANY

    Liability (BIPD) — BMC-91X · policy A0210955001

  3. 03/01/2023Insurance replaced — GREAT WEST CASUALTY CO.

    BIPD/Primary · policy MCP56751A

  4. 03/08/2020Insurance replaced — CANAL INSURANCE CO.

    BIPD/Primary · policy 685591001

  5. 06/03/2019MOTOR PROPERTY CONTRACT CARRIER — REINSTATED
  6. 05/22/2019Insurance cancelled — PROGRESSIVE CASUALTY INSURANCE COMPANY

    BIPD/Primary · policy CA 0480165

  7. 03/21/2019Insurance cancelled — NATIONAL INTERSTATE INSURANCE COMPANY

    BIPD/Primary · policy CAT 0010290-00

  8. 03/08/2019Insurance replaced — NATIONAL INTERSTATE INSURANCE COMPANY

    BIPD/Primary · policy CAT 0010290-00

  9. 03/08/2019Insurance replaced — CANAL INSURANCE CO.

    BIPD/Primary · policy 685591001

  10. 02/22/2019CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/04/2019)

  11. 03/08/2009Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 349897

  12. 02/09/2009CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/06/2009)

  13. 07/18/2008Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 349897

  14. 06/23/2008CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (06/26/2008)

  15. 03/08/2008Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 346604

  16. 02/11/2008CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/07/2008)

  17. 03/08/2007Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 343711

  18. 02/09/2007CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/09/2007)

  19. 03/08/2006Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 426213

  20. 02/09/2006CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/08/2006)

  21. 03/08/2005Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 457306

  22. 02/09/2005CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/11/2005)

  23. 07/01/2004Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.

    BIPD/Primary · policy 457306

  24. 06/04/2004CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (07/01/2004)

  25. 03/08/2004Insurance cancelled — CANAL INSURANCE CO.

    BIPD/Primary · policy 374822

  26. 02/27/2004CONTRACT — INVOLUNTARY REVOCATION

    DISCONTINUED REVOCATION (03/15/2004)

  27. 03/08/2003Insurance cancelled — NATIONAL INDEMNITY COMPANY

    BIPD/Primary · policy 70TRN191603

  28. 03/08/2002Insurance cancelled — MERCHANTS AND BUSINESS MEN'S MUTUAL INS. CO.

    BIPD/Primary · policy TR19340498

  29. 07/02/2001MOTOR PROPERTY CONTRACT CARRIER — GRANTED

    REVOKED (05/28/2019)

  30. 01/19/1983Registered 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
Non-ratable review
Rated
2002-11-02
Last review
2012-04-04
📄

MCS-150 registration

Form date
2026-05-06
Reported mileage
278,770 mi (2024)
⚡

Got a violation you want to contest?

Use the free AI-powered DataQs Drafter to generate a polished challenge letter — quotes the relevant 49 CFR, predicts your grant chance.

Open the Drafter →
ⓘ
Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Oct 2026 · Page refreshed: Nov 9, 2026, 5:18 AM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.