MAY TRUCKING COMPANY
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.
Broker payment signals
Bond, cancellation & authority risk for this broker — from free FMCSA records.
- No active broker bond on file — a bond is required to operate. High non-payment risk.
- Broker authority is inactive, not active.
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 20261,989 inspections · 21 violations (2 OOS) · 7% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.207F-SDASVehicle Maintenance1 OOS
Suspension - Deflated air suspension
7
1× · sev 7
- 2392.2-INATUnsafe Driving
Driver- Inattentive or Distracted Driving
5
1× · sev 5
- 3392.2-SLLMLUnsafe Driving
State/Local Laws - Failure to maintain lane
5
1× · sev 5
- 4393.45D-BHCRVehicle Maintenance1 OOS
Air Brake - Crimped or restricted
4
1× · sev 4
- 5395.30B1-ELDDFRHours-of-Service Compliance
HOS (ELD) - Driver failing to review records and certify the accuracy of the information.
3
3× · sev 1
- 6392.2SLTRSUnsafe Driving
State/Local Laws - Truck routing restriction
3
1× · sev 3
- 7392.16B-DPASS
Driver - Failed to require passenger(s) (not a co-driver) to use seat belt while operating a property-carrying CMV.
1
1×
- 8392.2-SLLEWA1
State/Local Laws - Excessive weight - 1-2500 lbs over on an axle/axle groups
1
1×
- 9392.2-SLL
State/Local Laws -
1
1×
- 10392.2-SLLTR
State/Local Laws - Truck restriction
1
1×
Most inspected in · top 8 states
- CA10
- NV3
- MS2
- ID2
- OR2
- WA2
- NM1
- FL1
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.
Following / lane / reckless violations are the leading contributor to Unsafe Driving
High impactEstimated Unsafe Driving percentile of 64% is at/over the 60% 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.
- 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other37× · 26%
- 392.2-SLLLRState/Local Laws - Lane restriction violation14× · 7%
- 392.2-SLLMLState/Local Laws - Failure to maintain lane6× · 4%
- 392.2-SLLS2State/Local Laws - Speeding 6-10 miles per hour over the speed limit18× · 10%
- 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit6× · 7%
- 392.2-SLLSWZState/Local Laws - Speeding work/construction zone3× · 6%
- 392.82DUMTDriver - Using a hand-held mobile telephone4× · 7%
- 392.2-SLLCPState/Local Laws - Operate a CMV while using a cellular phone7× · 7%
- 392.16-DDriver - Failed to use seat belt while operating a CMV10× · 10%
- 392.16B-CPASSCo-Driver - Failed to use seat belt while riding in a property-carrying CMV.1× · 2%
- 392.16Failing to use seat belt while operating a CMV2× · 2%
- Defensive-driving refresher on following distance and lane discipline
A high share of violations are occurring in CA
Medium impact163 of 551 violations in the last 12 months (30%) came from inspections in CA. 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 CA to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Log / ELD device 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.
- 395.30B1-ELDDFRHOS (ELD) - Driver failing to review records and certify the accuracy of the information.20× · 18%
- 395.24HOS (ELD) - ELD Form and Manner22× · 16%
- 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 t8× · 14%
- 395.8E1PCHOS - False record of duty status driver improper use of Personal Conveyance - Not OOS4× · 15%
- 395.8E-HOSPDHOS (Property) - No driver may make a false report in connection with a duty status. Explain2× · 8%
- 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 a5× · 2%
- 395.3A1-HOSPDHOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time1× · 6%
- 395.3A2-HOSPDHOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim1× · 6%
- 395.3AIIDriving beyond 8 hour driving limit since the end of the last on duty, off duty or sleeper berth period of at least 30 consecutive minutes1× · 2%
- Make sure the ELD is registered, working, and drivers know how to log in and certify daily
Driver qualification / CDL / medical violations are the leading contributor to Driver Fitness
Low impactEstimated Driver Fitness percentile of 12% is under the 75% line. In decent shape, but here's what's driving it.
- 383.23A2-LCDLNLicense (CDL) - Operate a CMV and does not possess a valid CDL1× · 52%
- 383.51A-LCDLRSWDLicense (CDL) - A person required to have a CLP or CDL who is disqualified must not drive a CMV1× · 34%
- 391.41B10-MCMedical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate1× · 14%
- Run a credential-expiration tracker; keep DQ files complete and the medical card on the driver
- Prioritize the out-of-service items — they carry the heaviest weight
Drugs / alcohol violations are the leading contributor to Controlled Substances/Alcohol
Low impactEstimated Controlled Substances/Alcohol percentile of 5% is under the 75% line. In decent shape, but here's what's driving it.
- 392.4A-DOSUDrugs/Other Substances - Operate a CMV while under the influence or evidence of use within the past 24 hours.2× · 50%
- 392.5A2-IPIntoxicating - No driver shall use alcohol, be under the influence of alcohol, or have any measured alcohol concentration or detected presence of alcohol, while o1× · 19%
- 392.4A-DOSPDrugs/Other Substances - Operate a CMV while in possession.1× · 17%
- Reinforce the testing program and zero-tolerance policy
- Prioritize the out-of-service items — they carry the heaviest weight
Brakes violations are the leading contributor to Vehicle Maintenance
Low impactEstimated Vehicle Maintenance percentile of 18% is under the 75% line. In decent shape, but here's what's driving it.
- 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear37× · 13%
- 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 199818× · 6%
- 393.45D-BAir Brake - Audible air leak at a proper connection17× · 6%
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS4× · 3%
- 393.75C-TAOTD-LT2/32Tires - Less than 2/32 inch tread depth4× · 2%
- 393.75A2-TAOTLMTires - All others, 75% of the tread width is loose/missing in excess of 12 inches of circumference2× · 2%
- 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.6× · 3%
- 393.9A-LSLILighting - Stop lamps - Any inoperative.6× · 2%
- 393.9A-LLPLLighting - License plate lamp inoperative5× · 1%
- 396.7A-UOCUnsafe Operations - Severe Post Crash Condition3× · 1%
- 393.207B-AALPMEAny of the locking pins are missing or not engaged.3× · 1%
- 396.3A1-FFuel - Dripping leak.3× · 1%
- 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.
- 393.47E×13Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 392.2-SLLEWA1×11State/Local Laws - Excessive weight - 1-2500 lbs over on an axle/axle groups
- 392.2-SLLEWA2×5State/Local Laws - Excessive weight - 2501-5000 lbs over on an axle/axle groups
- 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
- 393.53B-B×8Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear
- 393.45B2-B-AIR×5Air Brake - Hose/tubing damaged or not secured
- 393.55E-B×5Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998
- 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
- 395.30B1-ELDDFR×13HOS (ELD) - Driver failing to review records and certify the accuracy of the information.
- 395.24×12HOS (ELD) - ELD Form and Manner
- 395.24D-ELDPT×2HOS (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 NHTSA120 distinct vehicles seen in this carrier’s roadside inspections.
+ 90 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
56
Tow-away
53
Injury
28
Fatal
6
Company profile
FMCSA censusAUTHORIZED FOR HIRE
- Interstate · 100+ mi1,049 drivers
- Company officer
- C MARVIN MAY
- Operation
- Interstate · Hazmat
- D-U-N-S
- 9859430
- Registered since
- 1974-06-01
- Last MCS-150 update
- 2026-02-10
- Census status
- Active
Fleet: 1,049 trucks · 1,049 owned tractors · 2,653 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, addresses, phone numbers or officers with 9 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
54 events- 02/10/2026MCS-150 update filed
84.6M mi reported (2025)
- 11/05/2003Insurance cancelled — UNITED PACIFIC INSURANCE CO
SURETY · policy U 287 57 01
- 02/14/2000Insurance filed — SELF-INSURED
Cargo — BMC-34
- 02/14/2000Insurance replaced — ROYAL INSURANCE COMPANY OF AMERICA
CARGO · policy PST346893
- 03/19/1999COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (04/12/1999)
- 02/22/1999Insurance cancelled — TRAVELERS PROPERTY CASUALTY CO. OF AMERICA
CARGO · policy OT-660-659K0894-TIL-97
- 04/08/1998PROPERTY BROKER — GRANTED
REVOKED (12/02/2003)
- 05/30/1997COMMON — INVOLUNTARY REVOCATION
DISCONTINUED REVOCATION (06/24/1997)
- 05/02/1997Insurance cancelled — LUMBERMENS MUTUAL CASUALTY CO.
CARGO · policy 3AT 627 026 00
- 04/01/1995Insurance replaced — TIG INSURANCE COMPANY
CARGO · policy IM30204473
- 07/22/1986Insurance filed — SELF-INSURED
Liability (BIPD) — BMC-91X
- 05/06/1986MOTOR PROPERTY CONTRACT CARRIER — GRANTED
- 03/06/1986MOTOR PROPERTY CONTRACT CARRIER — WITHDRAWN
- 10/02/1985MOTOR PROPERTY CONTRACT CARRIER — GRANTED
- 02/12/1985MOTOR PROPERTY CONTRACT CARRIER — GRANTED
- 04/19/1982MOTOR PROPERTY COMMON CARRIER — GRANTED
- 04/22/1981MOTOR PROPERTY COMMON CARRIER — GRANTED
- 04/10/1981MOTOR PROPERTY COMMON CARRIER — GRANTED
- 10/15/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 08/05/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 07/28/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 07/16/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 03/31/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 02/20/1980MOTOR PROPERTY COMMON CARRIER — GRANTED
- 10/11/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
- 09/25/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
- 09/24/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
- 09/17/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
- 08/22/1979MOTOR PROPERTY COMMON CARRIER — WITHDRAWN
- 05/02/1979MOTOR PROPERTY COMMON CARRIER — GRANTED
Merged from FMCSA authority, insurance, out-of-service, and census records.
Operations
Classification
- AUTHORIZED FOR HIRE
Area served
- Interstate
FMCSA safety rating
- Rating
- Satisfactory
- Type
- Non-ratable review
- Rated
- 1995-05-17
- Last review
- 2020-02-06
MCS-150 registration
- Form date
- 2026-02-10
- Reported mileage
- 84,617,018 mi (2025)
Got a violation you want to contest?
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