WILLIAM N MASON INC
Risk factors
Moderate riskVioCodes scoreA 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.
Roadside inspection performance
Out-of-service rate vs national average. Lower is better.
CSA performance breakdown
FMCSA · Sep 202621 inspections · 61 violations (11 OOS) · 23% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.207A-STBWVehicle Maintenance2 OOS
Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca
14
2× · sev 7
- 2393.45B2-B-AIRVehicle Maintenance
Air Brake - Hose/tubing damaged or not secured
8
2× · sev 4
- 3393.53B-BVehicle Maintenance
Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
8
2× · sev 4
- 4393.47A-BCLMBDVehicle Maintenance
Drum Brake - Cracked/loose/missing lining/pad
8
2× · sev 4
- 5396.5B-LVehicle Maintenance
Lubrication - Oil or grease leak
6
2× · sev 3
- 6393.9A-LFTSIVehicle Maintenance
Lighting - Front - Turn signal - inoperative
6
1× · sev 6
- 7393.47E
Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
5
5×
- 8393.78A-WSVehicle Maintenance
Washers - Inoperative washing system.
1
1× · sev 1
- 9392.2-SLLEWG3
State/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight
1
1×
- 10392.2-SLLTL
State/Local Laws - Misc. traffic law violation
1
1×
Most inspected in · top 6 states
- MD18
- VA4
- PA1
- TX1
- CT1
- DE1
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.
Safety trends & next-run projection
Where each BASIC sits today, how it ranks against peers, and where it’s heading at the next monthly SMS run.
FMCSA keeps the Crash Indicator percentile private, and its measure needs a power-unit history public data doesn’t expose — so it can’t be estimated yet. VioCodes now records power units monthly, so a calibrated Crash estimate should light up over time. These are the public crash facts (all state-reportable crashes count, regardless of fault).
“Projected” estimates the next monthly SMS run from inspections on record now. FMCSA marks the BASIC percentile itself “Not Public,” so the percentile shown is a VioCodes estimate of how the carrier ranks against its peers, presented as a likely range (shaded on the gauge) and calibrated against real carriers. Crash Indicator has no public estimate — FMCSA keeps its measures fully private. Estimates, not official FMCSA figures. Not affiliated with FMCSA.
Recommendations
What’s driving each score, what to do about it, and where it could go.
Vehicle out-of-service rate exceeds the national average
High impactVehicle OOS rate is 28.6% vs the 22% national average. Carriers above the national OOS average draw more enforcement attention (audits, roadside stops) and can see higher insurance premiums.
- Review recent inspections with out-of-service violations and fix the root causes with equipment and drivers
- Run a preventative-maintenance program; periodically inspect tires, brakes and lights
- Reinforce thorough pre-trip and post-trip inspections; retrain where needed
Seat belt violations are the leading contributor to Unsafe Driving
Low impactEstimated Unsafe Driving percentile of 27% is under the 65% line. In decent shape, but here's what's driving it.
- 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other1× · 42%
- Zero-tolerance belt policy; verify with in-cab camera or spot checks
Driver Fitness needs attention
Low impactEstimated Driver Fitness percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Controlled Substances/Alcohol needs attention
Low impactEstimated Controlled Substances/Alcohol percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.
- 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 impactEstimated Vehicle Maintenance percentile of 61% is under the 80% line. In decent shape, but here's what's driving it.
- 393.47A-BCLMBDDrum Brake - Cracked/loose/missing lining/pad2× · 8%
- 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured2× · 7%
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× · 7%
- 393.207A-STBWSuspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca2× · 18%
- 393.207A-STCBSuspension - Suspension connecting rod or tracking component assembly (including spring leaves used as a suspension connecting rod) or any part used for attaching1× · 6%
- 393.9B-LRLOLighting - Tail lamp - Any obstructed.1× · 6%
- 393.9A-LFTSILighting - Front - Turn signal - inoperative2× · 4%
- 393.9A-LHWSLighting - Hazard warning signal(s) inoperative1× · 2%
- 392.9A2-CCargo - Vehicle components or dunnage not secured1× · 3%
- 393.106D-CCargo - Insufficient aggregate working load limit for cargo transported1× · 2%
- 392.9A-DFSLDriver - Failing to properly secure load1× · 1%
- 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
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.
- 393.207A-STBW×2Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca · OOS
- 393.47A-BCLMBD×2Drum Brake - Cracked/loose/missing lining/pad
- 393.9B-LRLOLighting - Tail lamp - Any obstructed.
- Look under the truck for shifted axles and broken/leaking suspension parts
- Include suspension in scheduled maintenance
- 393.47E×4Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 396.3A1-BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination · OOS
- 392.2-SLLState/Local Laws -
- 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
Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.
Inspection & crash map
live · FMCSA MCMISEvery inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).
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 NHTSA27 distinct vehicles seen in this carrier’s roadside inspections.
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 censusAUTHORIZED FOR HIRE
- 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.
Connections
carrier graphThis carrier shares VINs or addresses with 2 other carriers — review the connections below as part of your vetting.
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
30 events- 05/06/2026MCS-150 update filed
0.3M mi reported (2024)
- 03/01/2023Insurance filed — SENTRY SELECT INSURANCE COMPANY
Liability (BIPD) — BMC-91X · policy A0210955001
- 03/01/2023Insurance replaced — GREAT WEST CASUALTY CO.
BIPD/Primary · policy MCP56751A
- 03/08/2020Insurance replaced — CANAL INSURANCE CO.
BIPD/Primary · policy 685591001
- 06/03/2019MOTOR PROPERTY CONTRACT CARRIER — REINSTATED
- 05/22/2019Insurance cancelled — PROGRESSIVE CASUALTY INSURANCE COMPANY
BIPD/Primary · policy CA 0480165
- 03/21/2019Insurance cancelled — NATIONAL INTERSTATE INSURANCE COMPANY
BIPD/Primary · policy CAT 0010290-00
- 03/08/2019Insurance replaced — NATIONAL INTERSTATE INSURANCE COMPANY
BIPD/Primary · policy CAT 0010290-00
- 03/08/2019Insurance replaced — CANAL INSURANCE CO.
BIPD/Primary · policy 685591001
- 02/22/2019CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/04/2019)
- 03/08/2009Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 349897
- 02/09/2009CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/06/2009)
- 07/18/2008Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 349897
- 06/23/2008CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (06/26/2008)
- 03/08/2008Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 346604
- 02/11/2008CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/07/2008)
- 03/08/2007Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 343711
- 02/09/2007CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/09/2007)
- 03/08/2006Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 426213
- 02/09/2006CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/08/2006)
- 03/08/2005Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 457306
- 02/09/2005CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/11/2005)
- 07/01/2004Insurance cancelled — CAROLINA CASUALTY INSURANCE CO.
BIPD/Primary · policy 457306
- 06/04/2004CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (07/01/2004)
- 03/08/2004Insurance cancelled — CANAL INSURANCE CO.
BIPD/Primary · policy 374822
- 02/27/2004CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (03/15/2004)
- 03/08/2003Insurance cancelled — NATIONAL INDEMNITY COMPANY
BIPD/Primary · policy 70TRN191603
- 03/08/2002Insurance cancelled — MERCHANTS AND BUSINESS MEN'S MUTUAL INS. CO.
BIPD/Primary · policy TR19340498
- 07/02/2001MOTOR PROPERTY CONTRACT CARRIER — GRANTED
REVOKED (05/28/2019)
- 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)
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