UNIMARK LOWBOY TRANSPORTATION LLC
Risk factors
High 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 2026110 inspections · 29 violations (9 OOS) · 23% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.75A3-TAOLVehicle Maintenance2 OOS
Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS
16
2× · sev 8
- 2392.16-DUnsafe Driving
Driver - Failed to use seat belt while operating a CMV
14
2× · sev 7
- 3383.51A-LCDLRSWDDriver Fitness1 OOS
License (CDL) - A person required to have a CLP or CDL who is disqualified must not drive a CMV
8
1× · sev 8
- 4391.15A-LNCDLNSRWDriver Fitness1 OOS
Operating a non-CDL required commercial motor vehicle with driving privileges revoked, suspended, cancelled or otherwise disqualified. (391.15(a))
8
1× · sev 8
- 5393.47E
Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
3
3×
- 6392.2-SLLLRUnsafe Driving
State/Local Laws - Lane restriction violation
3
1× · sev 3
- 7393.60D
Windshield / Windows - Tinting permits less than 70% of light transmittance
2
2×
- 8392.2-SLLED
State/Local Laws - Excessive dimension (width/height/length)
1
1×
- 9392.2-SLLEWA2
State/Local Laws - Excessive weight - 2501-5000 lbs over on an axle/axle groups
1
1×
- 10392.2-SLL
State/Local Laws -
1
1×
Most inspected in · top 8 states
- CA4
- MI3
- LA3
- KY3
- NC2
- US2
- TN2
- FL2
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 24.4% 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
A high share of violations are occurring in Monroe County, MI
Medium impact7 of 41 violations in the last 12 months (17%) came from inspections in Monroe County, MI. 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 Monroe County, MI 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 47% 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 limit5× · 19%
- 392.2-SLLS4State/Local Laws - Speeding 15 or more miles per hour over the speed limit1× · 11%
- 392.2-SLLSWZState/Local Laws - Speeding work/construction zone1× · 5%
- 392.2-SLLLRState/Local Laws - Lane restriction violation4× · 11%
- 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other2× · 11%
- 392.2-SLLCPState/Local Laws - Operate a CMV while using a cellular phone1× · 5%
- 392.82DUMTDriver - Using a hand-held mobile telephone1× · 5%
- 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
False log / RODS violations are the leading contributor to Hours-of-Service Compliance
Low impactEstimated Hours-of-Service Compliance percentile of 29% is under the 60% line. In decent shape, but here's what's driving it.
- 395.8E1PCHOS - False record of duty status driver improper use of Personal Conveyance - Not OOS4× · 68%
- 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× · 17%
- 395.22H4-ELDBRODSHOS (ELD) - In-Vehicle Information - Failing to have a supply of blank driver's records of duty status graph-grids sufficient to record the driver's duty status a1× · 2%
- 395.22G-ELDMFVHOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.1× · 2%
- 395.22H1-ELDNUMHOS (ELD) - In-Vehicle Information - No user's manual for the driver describing how to operate the ELD. (May be electronic)1× · 2%
- 395.22H2-ELDNISDTHOS (ELD) Driver failing to have instruction sheet describing the data transfer mechanisms supported by the ELD and step-by-step instructions for the driver to pr1× · 2%
- Audit ELD edits and duty-status annotations weekly; a false log is a high-severity, high-visibility violation
- Retrain on correct logging and never letting a load pressure a driver into a false entry
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
Tires violations are the leading contributor to Vehicle Maintenance
Low impactEstimated Vehicle Maintenance percentile of 37% is under the 75% line. In decent shape, but here's what's driving it.
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS7× · 50%
- 393.75A1-TFSMFTires - Front, sidewall is cut/worn/damaged exposing ply cord1× · 3%
- 393.9A-LRLILighting - Tail lamp - Any inoperative1× · 5%
- 393.11A1-LRRLighting - Reflex reflector(s) missing or improper2× · 5%
- 393.11A1-CSURRConspicuity Systems - Truck tractor, upper rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 19971× · 3%
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× · 6%
- 393.50B-BBrake - Insufficient vacuum reserve to permit one full brake application after the engine is shut off1× · 2%
- 393.47A-BCFSBD-SADrum Brake - Contaminated friction surface on a steering axle1× · 2%
- 392.22B-DFPWDDriver - Failed to place warning devices on the road surface1× · 2%
- Gauge and thump every tire on the walk-around, including inner duals
- Replace before tread hits the limit; correct low pressure immediately
- 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.
- 393.47E×3Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 393.60D×2Windshield / Windows - Tinting permits less than 70% of light transmittance
- 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
- 383.51A-LCDLRSWDLicense (CDL) - A person required to have a CLP or CDL who is disqualified must not drive a CMV · OOS
- 391.15A-LNCDLNSRWOperating a non-CDL required commercial motor vehicle with driving privileges revoked, suspended, cancelled or otherwise disqualified. (391.15(a)) · OOS
- 391.11B2-QDriver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement guidance (391. · OOS
- Track CDL, medical card, and endorsement expirations ahead of time
- Keep the DQ file complete and the medical card on the driver
- 393.75A3-TAOL×2Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS · OOS
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
- Gauge/thump every tire on the walk-around, including inner duals
- Replace before tread hits the limit and correct low pressure immediately
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 NHTSA89 distinct vehicles seen in this carrier’s roadside inspections.
+ 59 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
13
Tow-away
13
Injury
10
Fatal
3
Company profile
FMCSA censusAUTHORIZED FOR HIRE
- Interstate · 100+ mi163 drivers
- Company officer
- STEPHANIE JOHNSTON
- Operation
- Interstate · Hazmat
- Registered since
- 2007-02-06
- Last MCS-150 update
- 2026-06-24
- Census status
- Active
Fleet: 77 trucks · 5 owned tractors · 118 owned trailers · 72 leased/term tractors.
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, addresses, phone numbers or emails with 1345 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
21 events- 06/24/2026MCS-150 update filed
9.1M mi reported (2025)
- 12/28/2023Insurance cancelled — RSUI INDEMNITY COMPANY
CARGO · policy NHQ364595
- 12/19/2023Insurance replaced — ACE AMERICAN INSURANCE COMPANY
BIPD/Primary · policy ISA H25297660
- 04/01/2020Insurance replaced — GREENWICH INSURANCE COMPANY
BIPD/Primary · policy RAD9437771
- 04/01/2016Insurance replaced — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
BIPD/Primary · policy 0949-129
- 04/01/2011Insurance replaced — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
BIPD/Primary · policy CA 094-91-29
- 06/07/2010Insurance name changed — RSUI INDEMNITY COMPANY
CARGO · policy NHQ355116
- 06/07/2010Insurance name changed — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
BIPD/Primary · policy CA 094-91-29
- 05/05/2010CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (05/11/2010)
- 05/05/2010COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (05/12/2010)
- 11/01/2009Insurance replaced — RSUI INDEMNITY COMPANY
CARGO · policy NHQ355116
- 04/01/2009Insurance replaced — ACE AMERICAN INSURANCE COMPANY
BIPD/Primary · policy LMT H08246427
- 04/01/2009Insurance replaced — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
BIPD/Primary · policy CA 094-91-29
- 10/01/2008Insurance cancelled — LIBERTY MUTUAL FIRE INSURANCE CO.
BIPD/Primary · policy AI2-741-435290-01
- 09/04/2008COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (10/03/2008)
- 09/04/2008CONTRACT — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (10/03/2008)
- 11/01/2007Insurance cancelled — LEXINGTON INSURANCE COMPANY
CARGO · policy 8755555
- 10/05/2007COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (11/02/2007)
- 03/19/2007MOTOR PROPERTY COMMON CARRIER — GRANTED
- 03/08/2007MOTOR PROPERTY CONTRACT CARRIER — GRANTED
- 02/06/2007Registered 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
- Not rated
- Type
- Non-ratable review
- Rated
- —
- Last review
- 2021-02-18
MCS-150 registration
- Form date
- 2026-06-24
- Reported mileage
- 9,113,256 mi (2025)
Changes on file
FMCSA census historyJanuary, 2021
First on-record entry — UNIMARK LOWBOY TRANSPORTATION LLC, PLEASANT PRAIRIE, WI
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.