OXYGEN SERVICE CO 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 202641 inspections · 35 violations (6 OOS) · 13% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.207A-STBWVehicle Maintenance3 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
21
3× · sev 7
- 2393.75A3-TAOLVehicle Maintenance1 OOS
Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS
8
1× · sev 8
- 3393.9A-LBLVehicle Maintenance
Lighting - Backup lamp inoperative
6
1× · sev 6
- 4393.9A-LRLIVehicle Maintenance
Lighting - Tail lamp - Any inoperative
6
1× · sev 6
- 5172.400A1-HMLHazardous Materials Compliance
HM (Labeling) - Non-bulk package not labeled as required.
5
1× · sev 5
- 6172.506A-HMPMCHazardous Materials Compliance
HM (Placarding) - Failure to provide/affix placards when required.
5
1× · sev 5
- 7393.45B2-B-AIRVehicle Maintenance
Air Brake - Hose/tubing damaged or not secured
4
1× · sev 4
- 8396.17C-PIVehicle Maintenance
Operating a CMV without documentation of a periodic inspection
4
1× · sev 4
- 9396.3A1-BALACVehicle Maintenance
Brake - Audible air leak from a brake chamber
4
1× · sev 4
- 10172.202A7-HMSPSHazardous Materials Compliance
HM (Shipping Papers) - Shipper HM shipping paper does not list number and type of package as required.
3
1× · sev 3
Most inspected in · top 3 states
- MN17
- WI11
- US2
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.
A high share of violations are occurring in Washington County, MN
Medium impact8 of 29 violations in the last 12 months (28%) came from inspections in Washington 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 Washington County, MN to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Speeding violations are the leading contributor to Unsafe Driving
Low impactEstimated Unsafe Driving percentile of 15% is under the 60% line. In decent shape, but here's what's driving it.
- 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit4× · 100%
- 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
Hours-of-Service Compliance needs attention
Low impactEstimated Hours-of-Service Compliance percentile of 0% is under the 60% 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 75% 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 75% 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 45% is under the 75% line. In decent shape, but here's what's driving it.
- 396.3A1-BALACBrake - Audible air leak from a brake chamber4× · 9%
- 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured2× · 7%
- 393.55C1-BAir Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault.1× · 4%
- 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 ca3× · 27%
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS2× · 17%
- 393.75A3-TAOLTISTires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS1× · 3%
- 393.9A-LRLILighting - Tail lamp - Any inoperative1× · 6%
- 393.9A-LBLLighting - Backup lamp inoperative1× · 6%
- 393.9A-LSLILighting - Stop lamps - Any inoperative.1× · 4%
- 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.
- 393.9A-LRLILighting - Tail lamp - Any inoperative
- 393.55C1-BAir Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault.
- 393.47A-BCFSBDDrum Brake - Contaminated friction surface
- Walk the lights every pre-trip and carry spare bulbs/fuses
- Clean lenses and check the trailer plug for corrosion
- 393.47EBrake 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
- 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
- 177.817E1-HMHCHM (Highway Carriage) - Failing to clearly distinguish HM shipping papers from other papers of any kind
- Verify placards match the shipping papers before leaving
- Keep shipping papers in reach and in order
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 NHTSA52 distinct vehicles seen in this carrier’s roadside inspections.
+ 22 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+ mi16 drivers
- Intrastate · <100 mi14 drivers
- Company officer
- RYAN DIEKOW
- Operation
- Interstate · Hazmat
- D-U-N-S
- 6199475
- Registered since
- 1988-11-22
- Last MCS-150 update
- 2026-01-19
- Census status
- Active
Fleet: 35 trucks · 30 owned tractors · 29 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- 01/19/2026MCS-150 update filed
1.1M mi reported (2025)
- 11/22/1988Registered 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
- —
- Rated
- 1989-12-26
- Last review
- 2000-11-20
MCS-150 registration
- Form date
- 2026-01-19
- Reported mileage
- 1,060,000 mi (2025)
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.