DIAMOND 4M OILFIELD & ENVIRONMENTAL LLC
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 202638 inspections · 73 violations (4 OOS) · 13% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.9TSVehicle Maintenance1 OOS
Inoperative turn signal
12
2× · sev 6
- 2393.47E
Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
4
4×
- 3393.53B
CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear
4
4×
- 4393.9Vehicle Maintenance1 OOS
Inoperable Required Lamp
4
2× · sev 2
- 5393.45B2-B-AIRVehicle Maintenance
Air Brake - Hose/tubing damaged or not secured
4
1× · sev 4
- 6392.2WNot in SMS
Excessive Weight violation
3
3×
- 7393.47A
Inadequate brakes for safe stopping - Brake Lining condition
1
1×
- 8393.75C
Tire-other tread depth less than 2/32 of inch measured in a major tread groove
1
1×
- 9393.83G
Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment
1
1×
- 10393.78Vehicle Maintenance
Wipers - Inoperative / missing / damaged wipers
1
1× · sev 1
Most inspected in · top 3 states
- TX28
- MO1
- OK1
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.
Brakes violations are the leading contributor to Vehicle Maintenance
Medium impactEstimated Vehicle Maintenance percentile of 76% is close to the 80% intervention line — worth getting ahead of before it crosses.
- 393.45B2UVBrake Hose or Tubing Chafing and/or Kinking Under Vehicle5× · 21%
- 396.3A1BBrakes (general) Explain:3× · 12%
- 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured1× · 7%
- 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
A high share of violations are occurring in Wise County, TX
Medium impact15 of 41 violations in the last 12 months (37%) came from inspections in Wise County, TX. 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 Wise County, TX to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Hours-of-Service Compliance needs attention
Low impactEstimated Hours-of-Service Compliance 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
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
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.
- 393.53B×2CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear
- 393.47EBrake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 393.55C1Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system
- 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
- 393.9×2Inoperable Required Lamp · OOS
- 396.3A1BBrakes (general) Explain:
- 392.9A2-CCargo - Vehicle components or dunnage not secured · OOS
- Walk the lights every pre-trip and carry spare bulbs/fuses
- Clean lenses and check the trailer plug for corrosion
- 392.2W×2Excessive Weight violation
- Review these violations with drivers and add the fix to your pre-trip and PM routine
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 NHTSA34 distinct vehicles seen in this carrier’s roadside inspections.
+ 4 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
4
Tow-away
4
Injury
2
Fatal
0
Company profile
FMCSA censusPRIVATE PROPERTY;AUTHORIZED FOR HIRE
- Interstate · 100+ mi13 drivers
- Company officer
- CATHY MOWERY
- Operation
- Interstate
- Registered since
- 2018-10-19
- Last MCS-150 update
- 2026-03-23
- Census status
- Active
Fleet: 18 trucks · 16 owned tractors · 14 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 with 3 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
4 events- 03/23/2026MCS-150 update filed
0.9M mi reported (2025)
- 11/09/2018MOTOR PROPERTY COMMON CARRIER — GRANTED
- 10/25/2018Insurance filed — PROGRESSIVE COUNTY MUTUAL
Liability (BIPD) — BMC-91X · policy CA 08304173
- 10/19/2018Registered with FMCSA
PRIVATE PROPERTY;AUTHORIZED FOR HIRE
Merged from FMCSA authority, insurance, out-of-service, and census records.
Operations
Classification
- PRIVATE PROPERTY;AUTHORIZED FOR HIRE
Area served
- Interstate
FMCSA safety rating
- Rating
- Not rated
- Type
- —
- Rated
- —
- Last review
- —
MCS-150 registration
- Form date
- 2026-03-23
- Reported mileage
- 933,565 mi (2025)
Got a violation you want to contest?
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