CORNERSTONE FREIGHT LINES
Legal: CORNERSTONE WIRELESS 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.
Broker payment signals
Bond, cancellation & authority risk for this broker — from free FMCSA records.
- Broker authority is inactive, not active.
- Bond has changed hands 5 times across 3 sureties — churn can signal payment or coverage trouble.
These are FMCSA bond & authority signals — not a credit report. A filed bond cancellation is the biggest early warning that a broker may stop paying, but days-to-pay and slow-pay history aren’t public FMCSA data — verify those with a broker-credit service or references before extending terms.
Roadside inspection performance
Out-of-service rate vs national average. Lower is better.
CSA performance breakdown
FMCSA · Sep 202658 inspections · 66 violations (10 OOS) · 17% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.9A-LHLIVehicle Maintenance
Lighting - Headlamp(s) - Any inoperative
18
3× · sev 6
- 2393.75A3-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
- 3392.2-SLLLRUnsafe Driving
State/Local Laws - Lane restriction violation
12
4× · sev 3
- 4393.9A-LTSIVehicle Maintenance2 OOS
Lighting - Turn signal - Any inoperative on the rearmost vehicle.
12
2× · sev 6
- 5393.9A-HLLHVehicle Maintenance
Lighting - Headlamp(s) fail to operate on low and high beam
6
1× · sev 6
- 6393.45D-BVehicle Maintenance
Air Brake - Audible air leak at a proper connection
4
1× · sev 4
- 7393.43A-TPVVehicle Maintenance1 OOS
Air Brake - Inoperable or missing tractor protection valve
4
1× · sev 4
- 8393.201A-FRMCVehicle Maintenance1 OOS
Frame - Cracked/loose/broken frame member affecting support of functional components
2
1× · sev 2
- 9393.9Vehicle Maintenance
Inoperable Required Lamp
2
1× · sev 2
- 10393.55C2
CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system
1
1×
Most inspected in · top 7 states
- GA20
- TX3
- AL2
- IN2
- IL1
- CA1
- SC1
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.
Lighting / lamps violations are the leading contributor to Vehicle Maintenance
High impactEstimated Vehicle Maintenance percentile of 81% is at/over the 75% 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.
- 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.4× · 16%
- 393.9A-LHLILighting - Headlamp(s) - Any inoperative3× · 12%
- 393.9A-LSLILighting - Stop lamps - Any inoperative.2× · 5%
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS3× · 13%
- 393.75C-TAOTD-LT2/32Tires - Less than 2/32 inch tread depth1× · 5%
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× · 4%
- 393.45D-BAir Brake - Audible air leak at a proper connection3× · 4%
- 393.43A-TPVAir Brake - Inoperable or missing tractor protection valve1× · 3%
- 396.17C-PIOperating a CMV without documentation of a periodic inspection2× · 4%
- 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
Vehicle out-of-service rate exceeds the national average
High impactVehicle OOS rate is 22.6% 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
A high share of violations are occurring in Harris County, GA
Medium impact9 of 46 violations in the last 12 months (20%) came from inspections in Harris County, GA. 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 Harris County, GA to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Following / lane / reckless violations are the leading contributor to Unsafe Driving
Low impactEstimated Unsafe Driving percentile of 4% is under the 60% line. In decent shape, but here's what's driving it.
- 392.2-SLLLRState/Local Laws - Lane restriction violation7× · 43%
- 392.2-SLLMLState/Local Laws - Failure to maintain lane1× · 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, other1× · 6%
- 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit1× · 16%
- 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit2× · 13%
- 392.2-SLLSWZState/Local Laws - Speeding work/construction zone1× · 11%
- Defensive-driving refresher on following distance and lane discipline
False log / RODS violations are the leading contributor to Hours-of-Service Compliance
Low impactEstimated Hours-of-Service Compliance percentile of 38% 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 OOS2× · 61%
- 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 a3× · 13%
- 395.24HOS (ELD) - ELD Form and Manner4× · 17%
- 395.30B1-ELDDFRHOS (ELD) - Driver failing to review records and certify the accuracy of the information.2× · 9%
- 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
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
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-LHLI×2Lighting - Headlamp(s) - Any inoperative
- 393.9A-LSLILighting - Stop lamps - Any inoperative.
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
- Walk the lights every pre-trip and carry spare bulbs/fuses
- Clean lenses and check the trailer plug for corrosion
- 392.2-SLLLR×2State/Local Laws - Lane restriction violation
- Coach speed and following distance — Unsafe Driving points are weighted heavily
- Hands off the phone; always belt up
- 393.47EBrake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 393.60CWindshield - Damaged or Discolored
- 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 NHTSA92 distinct vehicles seen in this carrier’s roadside inspections.
+ 62 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
2
Tow-away
1
Injury
1
Fatal
0
Company profile
FMCSA censusAUTHORIZED FOR HIRE
- Interstate · 100+ mi21 drivers
- Interstate · <100 mi20 drivers
- Intrastate · <100 mi46 drivers
- Company officer
- MYUNG JOON KIM
- Operation
- Interstate
- Registered since
- 2015-02-03
- Last MCS-150 update
- 2026-01-16
- Census status
- Active
Fleet: 92 trucks · 35 owned tractors · 57 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.
Data change history
Every FMCSA record change we’ve detected — address, fleet size, contacts, MCS-150 — newest first.
Connections
carrier graphThis carrier shares VINs, officers or emails with 66 other carriers — review the connections below as part of your vetting.
This carrier’s phone is shared by many carriers (likely a dispatch/registration service), so phone links are omitted. 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
47 events- 09/01/2026Insurance filed — United Specialty Insurance Company
Liability (BIPD) — BMC-91X · policy NKMARMSII1826NC
- 09/01/2026Insurance ended — United Specialty Insurance Company
policy NKM-ARMSII-18-25-NC
- 01/16/2026MCS-150 update filed
10.0M mi reported (2025)
- 09/01/2025Insurance filed — United Specialty Insurance Company
Liability (BIPD) — BMC-91X · policy NKM-ARMSII-18-25-NC
- 09/01/2025Insurance replaced — MS TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 02
- 07/21/2025Insurance name changed — UNITED STATES FIRE INSURANCE CO.
SURETY · policy 612419810
- 07/02/2025Insurance filed — United States Fire Insurance Company
Property broker surety — BMC-84 · policy 612419810
- 07/02/2025Insurance replaced — UNITED STATES FIRE INSURANCE CO.
SURETY · policy 612419810
- 06/17/2025BROKER — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (07/11/2025)
- 12/01/2024Insurance replaced — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 02
- 12/01/2024Insurance cancelled — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 01
- 11/04/2024COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (11/26/2024)
- 08/17/2024Insurance cancelled — UNITED STATES FIRE INSURANCE CO.
SURETY · policy 612419809
- 08/12/2024Insurance name changed — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 01
- 07/23/2024PROPERTY BROKER — GRANTED
REVOKED (08/26/2024)
- 07/19/2024PROPERTY BROKER — REINSTATED
- 07/12/2024Insurance replaced — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 01
- 07/09/2024COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (07/15/2024)
- 12/01/2023Insurance cancelled — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 00
- 11/26/2023Insurance cancelled — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 00
- 11/01/2023Insurance replaced — TRANSVERSE SPECIALTY INSURANCE COMPANY
BIPD/Primary · policy TS TS CA0000035 00
- 10/30/2023COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (11/29/2023)
- 11/26/2022Insurance cancelled — STATE NATIONAL INSURANCE CO., INC.
BIPD/Primary · policy LNG20CO1126-01
- 10/31/2022COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (11/22/2022)
- 06/09/2022Insurance cancelled — STATE NATIONAL INSURANCE CO., INC.
BIPD/Primary · policy LNG20CO1126-01
- 05/06/2022Insurance replaced — STATE NATIONAL INSURANCE CO., INC.
BIPD/Primary · policy LNG20CO1126-01
- 11/26/2021Insurance cancelled — STATE NATIONAL INSURANCE CO., INC.
BIPD/Primary · policy LNG20CO1126
- 11/01/2021COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (11/23/2021)
- 02/21/2021Insurance cancelled — GREAT AMERICAN INSURANCE CO.
SURETY · policy 3272240
- 11/26/2020Insurance replaced — ACE AMERICAN INSURANCE COMPANY
BIPD/Primary · policy H08472968
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
- 2025-12-10
MCS-150 registration
- Form date
- 2026-01-16
- Reported mileage
- 10,000,000 mi (2025)
Got a violation you want to contest?
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