MASON BROS COMPANY INC
Risk factors
Low 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 202629 inspections · 50 violations (5 OOS) · 13% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1392.2-SLLS2Unsafe Driving
State/Local Laws - Speeding 6-10 miles per hour over the speed limit
12
3× · sev 4
- 2392.2-SLLFCUnsafe Driving
State/Local Laws - Following too closely
10
2× · sev 5
- 3393.9A-LSLIWRVehicle Maintenance1 OOS
Lighting - Stop lamps - Both inoperative when required to be on
6
1× · sev 6
- 4396.3A1-BALRVehicle Maintenance1 OOS
Air Brake - Fails air loss rate test
4
1× · sev 4
- 5393.45D-BAALVehicle Maintenance1 OOS
Air Brake - Audible air leak at other than a proper connection
4
1× · sev 4
- 6393.201A-VURBVehicle Maintenance1 OOS
Van/OT Trailers - Upper rail buckled/cracked and has missing adjacent roof bows.
2
1× · sev 2
- 7393.9A-LCLVehicle Maintenance
Lighting - Clearance lamp(s) inoperative
2
1× · sev 2
- 8392.2-SLL
State/Local Laws -
1
1×
- 9395.22G-ELDMFVHours-of-Service Compliance
HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.
1
1× · sev 1
- 10395.22H1-ELDNUMHours-of-Service Compliance
HOS (ELD) - In-Vehicle Information - No user's manual for the driver describing how to operate the ELD. (May be electronic)
1
1× · sev 1
Most inspected in · top 5 states
- MN17
- WI8
- IA2
- MI2
- SD1
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.
Log / ELD device violations are the leading contributor to Hours-of-Service Compliance
High impactEstimated Hours-of-Service Compliance percentile of 78% is at/over the 50% intervention line. Carriers with a BASIC in alert are prioritized for enforcement (warning letters, audits) and inspected more often — which tends to generate still more violations.
- 395.34A1-ELDDFNHOS (ELD) - Driver failed to note the malfunction of the ELD and provide written notice of the malfunction to the motor carrier within 24 hours1× · 26%
- 395.24D-ELDPTHOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with t1× · 16%
- 395.24HOS (ELD) - ELD Form and Manner1× · 5%
- 395.8E-HOSPDOOSHOS (Property) - Driver produces a false record of duty status that concealed an HOS limitation violation after the last rest period. Explain:1× · 47%
- Make sure the ELD is registered, working, and drivers know how to log in and certify daily
- Prioritize the out-of-service items — they carry the heaviest weight
Speeding violations are the leading contributor to Unsafe Driving
Medium impactEstimated Unsafe Driving percentile of 43% is close to the 50% intervention line — worth getting ahead of before it crosses.
- 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit6× · 31%
- 392.2-SLLSWZState/Local Laws - Speeding work/construction zone1× · 19%
- 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit1× · 14%
- 392.2-SLLFCState/Local Laws - Following too closely2× · 16%
- 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× · 6%
- 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
Lighting / lamps violations are the leading contributor to Vehicle Maintenance
Medium impactEstimated Vehicle Maintenance percentile of 64% is close to the 65% intervention line — worth getting ahead of before it crosses.
- 393.9A-LRLILighting - Tail lamp - Any inoperative1× · 12%
- 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on1× · 11%
- 393.9A-LILLighting - Identification lamp(s) inoperative1× · 4%
- 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19982× · 11%
- 396.3A1-BALRAir Brake - Fails air loss rate test1× · 8%
- 393.45D-BAALAir Brake - Audible air leak at other than a proper connection1× · 8%
- 396.17C-PIOperating a CMV without documentation of a periodic inspection1× · 8%
- 393.75A1-TFBMFTires - Front, belt material/casing ply showing in tread area1× · 7%
- Walk the lights every pre-trip and carry spare bulbs/fuses; clean lenses and check the trailer plug
- Prioritize the out-of-service items — they carry the heaviest weight
A high share of violations are occurring in Carlton County, MN
Medium impact6 of 27 violations in the last 12 months (22%) came from inspections in Carlton County, MN. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.
- Review the inspections from Carlton County, MN to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Driver Fitness needs attention
Low impactEstimated Driver Fitness percentile of 0% is under the 65% 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 65% 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
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.
- 392.2-SLLS2×2State/Local Laws - Speeding 6-10 miles per hour over the speed limit
- 392.2-SLLSWZState/Local Laws - Speeding work/construction zone
- 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit
- Coach speed and following distance — Unsafe Driving points are weighted heavily
- Hands off the phone; always belt up
- 395.24D-ELDPTHOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with t
- Log in and annotate the ELD correctly every day; fix edits promptly
- Plan trips around available hours — never falsify a log
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 NHTSA55 distinct vehicles seen in this carrier’s roadside inspections.
+ 25 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
1
Tow-away
1
Injury
0
Fatal
0
Company profile
FMCSA censusPRIVATE PROPERTY
- Interstate · 100+ mi40 drivers
- Company officer
- GARY CARSTEN
- Operation
- Interstate
- D-U-N-S
- 23098239
- Registered since
- 1989-09-19
- Last MCS-150 update
- 2024-05-30
- Census status
- Active
Fleet: 47 trucks · 1 buses · 43 owned tractors · 54 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.
Activity history
2 events- 05/30/2024MCS-150 update filed
2.4M mi reported (2023)
- 09/19/1989Registered with FMCSA
PRIVATE PROPERTY
Merged from FMCSA authority, insurance, out-of-service, and census records.
Operations
Classification
- PRIVATE PROPERTY
Area served
- Interstate
FMCSA safety rating
- Rating
- Satisfactory
- Type
- Safety audit
- Rated
- 1990-10-16
- Last review
- 1990-07-18
MCS-150 registration
- Form date
- 2024-05-30
- Reported mileage
- 2,363,000 mi (2023)
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