HaulerCheck · https://haulercheck.com/carrier/4226586-m-c-diaz-llc/ · Checked 2026-10-20 04:35 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
M & C DIAZ LLC
No risk signals in the last-known data
How risk signals workNothing in the FMCSA record matched our risk signals. That is not a guarantee, and it does not confirm who you are talking to; follow the checks below. Authority and insurance are last known from May 14, 2026.
No cargo cover filed with FMCSA
Green means the FMCSA record shows it. It does not confirm who you are talking to, or that a policy covers your specific load.
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (908) 937-6228, not a number from an email or load board.
- Check that the MC number you were given is MC1634522.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC1634522 | Primary | TRAILBLAZERS INSURANCE COMPANY INC A RRG Policy STB03598 · 91X | $750,000 | Jun 30, 2025 | Active |
Source: Last known · FMCSA snapshot May 14, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Last known filings. Insurance for this carrier comes from the FMCSA snapshot of May 14, 2026. Policies may have been cancelled or replaced since. Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
1 of 9 · New Jersey avg 22.0%
1 of 15 · New Jersey avg 8.1%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Jun 22, 2026 | NJ | 1 | 1 | No |
| Apr 22, 2026 | MD | 1 | 1 | No |
| Mar 23, 2026 | NY | 2 | 2 | No |
| Mar 20, 2026 | NJ | 3 | 0 | No |
| Jan 7, 2026 | NJ | 2 | 1 | No |
| Dec 30, 2025 | MA | 3 | 0 | No |
| Nov 25, 2025 | CT | 3 | 2 | Yes |
| Oct 7, 2025 | CT | 3 | 0 | No |
| Aug 28, 2025 | CT | 1 | 9 | No |
| Aug 14, 2025 | PA | 2 | 2 | No |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The New Jersey average covers 63,029 vehicle and 95,938 driver inspections of all New Jersey-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
20 violations counted in FMCSA's Safety Measurement System (SMS), 2 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 26 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | New Jersey share |
|---|---|---|---|---|
| Vehicle Maintenance | 17 | 1 | 85.0% | 73.0% |
| Unsafe Driving | 2 | 0 | 10.0% | 9.8% |
| Driver Fitness | 1 | 1 | 5.0% | 6.4% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Air Brake - Hose/tubing damaged or not secured Brakes All Others · Vehicle Maintenance · code 39345B2BAIR | 2 | 0 |
| Restriction - (CDL) - Operate a CMV in violation of a restriction License-related: High · Driver Fitness · code 38395ALCDL | 1 | 1 |
| Lighting - Turn signal - Any inoperative on the rearmost vehicle. Lighting · Vehicle Maintenance · code 3939ALTSI | 1 | 1 |
| State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other Dangerous Driving · Unsafe Driving · code 3922SLLTCD | 1 | 0 |
| State/Local Laws - Speeding 6-10 miles per hour over the speed limit Speeding 2 · Unsafe Driving · code 3922SLLS2 | 1 | 0 |
| Air Brake - Audible air leak at a proper connection Brakes All Others · Vehicle Maintenance · code 39345DB | 1 | 0 |
| Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear Brakes All Others · Vehicle Maintenance · code 39353BB | 1 | 0 |
| Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 2001 for towed vehicle. Brakes All Others · Vehicle Maintenance · code 39355D2B | 1 | 0 |
| Brake - Audible air leak from a brake chamber Brakes All Others · Vehicle Maintenance · code 3963A1BALAC | 1 | 0 |
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 1 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the New Jersey column is the mix across all New Jersey-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 19, 2024 – Oct 19, 2026
Crash details
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Oct 16, 2025 | Southampton, NJ | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 4226586 |
|---|---|
| MC / docket | MC1634522 |
| Legal name | M & C DIAZ LLC |
| Operation | Interstate |
| Business type | — |
| Power units | 10 |
| Drivers | 10 |
| Annual mileage | 1,365,000 (2025) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Apr 16, 2024 · 2 years ago |
| Last MCS-150 update | Jan 12, 2026 |
Cargo carried
General Freight
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about M & C DIAZ LLC
What does M & C DIAZ LLC's operating authority allow?
MC1634522: Common carrier (may haul regulated property for hire for the general public).
Which information about M & C DIAZ LLC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. Insurance filings are from the same May 14, 2026 snapshot. FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking M & C DIAZ LLC?
Confirm the authority and insurance on the Motus record for USDOT 4226586. Call the company back on the phone number on file, (908) 937-6228, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1634522, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Elizabeth, NJ →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-20 04:35 UTC.