HaulerCheck · https://haulercheck.com/carrier/491637-diamond-trucking-inc/ · Checked 2026-10-20 08:15 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: FMCSA Motus · Oct 19, 2026
DIAMOND TRUCKING INC
Doing business as DIAMOND TRUCKING
No risk signals found
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.
Cargo cover filed: $5,000
Green means the FMCSA record shows it. It does not confirm who you are talking to, or that a policy covers your specific load.
What to verify next
- Confirm authority and insurance on the official Motus record ↗. Safety record: SAFER ↗.
- Call back on the number on file, (602) 278-7399, not a number from an email or load board.
- Check that the MC number you were given is MC240905.
- 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. Cargo cover filed: $5,000.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Cargo | MC240905 | — | National Interstate Insurance Company Policy CGT 0011364-00 · BMC-34 | $5,000 | May 1, 2022 | Active |
| Liability (BI&PD) | MC240905 | Primary | National Interstate Insurance Company Policy GAL 4840030-00 · BMC-91X | $2,000,000 | May 1, 2022 | Active |
| Liability (BI&PD) | MC240905 | — | General Star Indemnity Company Policy IXG423269I · BMC-91X | $3,000,000 | Jun 1, 2026 | Active |
Source: FMCSA Motus · Oct 19, 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.
Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
2 of 130 · Arizona avg 22.3%
0 of 135 · Arizona avg 4.5%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Oct 5, 2026 | NM | 1 | 0 | No |
| Sep 18, 2026 | NM | 2 | 0 | No |
| Sep 14, 2026 | AZ | 1 | 0 | No |
| Sep 4, 2026 | NM | 2 | 0 | No |
| Sep 1, 2026 | NM | 3 | 1 | No |
| Aug 19, 2026 | AZ | 2 | 0 | No |
| Aug 9, 2026 | NM | 2 | 0 | No |
| Aug 7, 2026 | CO | 1 | 1 | No |
| Aug 5, 2026 | NM | 2 | 0 | No |
| Aug 5, 2026 | AZ | 2 | 1 | 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 Arizona average covers 53,982 vehicle and 81,935 driver inspections of all Arizona-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
41 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 49 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 | Arizona share |
|---|---|---|---|---|
| Vehicle Maintenance | 26 | 1 | 63.4% | 75.7% |
| Hazardous Materials Compliance | 8 | 1 | 19.5% | 0.4% |
| Unsafe Driving | 5 | 0 | 12.2% | 8.1% |
| Hours-of-Service Compliance | 2 | 0 | 4.9% | 12.1% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 Brakes All Others · Vehicle Maintenance · code 39355EB | 4 | 0 |
| Frame - Cracked/loose/sagging/broken frame or chassis Cab Body Frame · Vehicle Maintenance · code 393201AFRCLS | 4 | 0 |
| HM (Testing) - Failing to properly mark cargo tank test dates as required Package Testing - HM · Hazardous Materials Compliance · code 180415HMTMC | 2 | 0 |
| Air Brake - Audible air leak at a proper connection Brakes All Others · Vehicle Maintenance · code 39345DB | 2 | 0 |
| Emergency Equipment - Fire Extinguishers - unsecured Emergency Equipment · Vehicle Maintenance · code 39395A4EEUS | 2 | 0 |
| Operating a CMV without documentation of a periodic inspection Inspection Reports · Vehicle Maintenance · code 39617CPI | 2 | 0 |
| Accepting/transporting HM not prepared in accordance with the regulations. Package has identifiable (without the use of instruments) release of HM to the environ HM Other · Hazardous Materials Compliance · code 177801LEAK | 1 | 1 |
| Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS Tires · Vehicle Maintenance · code 39375A3TAOL | 1 | 1 |
| HM (Markings) - Failing to mark a manual remote shut-off device as required Documentation - HM · Hazardous Materials Compliance · code 172328DHMM | 1 | 0 |
| HM (Markings) - Failing to mark a bulk HM package with ID numbers as required. Markings - HM · Hazardous Materials Compliance · code 172302AHMM | 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 Arizona column is the mix across all Arizona-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
5 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Sep 6, 2026 | Black Canyon City, AZ | 0 | 1 |
| May 24, 2026 | Phoenix, AZ | 0 | 0 |
| May 19, 2026 | Salome, AZ | 0 | 1 |
| Jun 28, 2025 | Phoenix, AZ | 0 | 0 |
| May 4, 2025 | Phoenix, AZ | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 491637 |
|---|---|
| MC / docket | MC240905 |
| Legal name | DIAMOND TRUCKING INC |
| DBA name | DIAMOND TRUCKING |
| Operation | Interstate |
| Business type | Individual |
| Power units | 76 |
| Drivers | 81 |
| Annual mileage | 6,043,936 (2025) |
| Hazmat | Yes |
| Safety rating | Satisfactory (Oct 1, 2008) |
| USDOT number added | Jul 21, 1992 · 34 years ago |
| Last MCS-150 update | Jan 14, 2026 |
Cargo carried
General FreightBuilding MaterialsLiquids/GasesChemicalsCommodities Dry BulkConstructionOtherMotor Fuels
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 DIAMOND TRUCKING INC
What does DIAMOND TRUCKING INC's operating authority allow?
MC240905: Motor carrier (may haul regulated property for hire).
Which information about DIAMOND TRUCKING INC is old or missing?
Nothing notable: authority and insurance come from current Motus data and there is enough inspection history to compare.
What should I verify before booking DIAMOND TRUCKING INC?
Confirm the authority and insurance on the Motus record for USDOT 491637. Call the company back on the phone number on file, (602) 278-7399, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC240905, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Phoenix, AZ →
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 08:15 UTC.