HaulerCheck · https://haulercheck.com/carrier/4381717-diamond-six-s-heavy-haul-llc/ · Checked 2026-10-20 12:21 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
DIAMOND SIX S HEAVY HAUL LLC
Doing business as 2-15-2025
Do not book until these are resolved · 1 signal
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Operating authority is not authorized (last known)Without active authority the company may not haul or broker interstate freight for hire.
No cargo cover filed with FMCSA
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, (307) 277-1897, not a number from an email or load board.
- Check that the MC number you were given is MC1717772.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
0 of 0 · Utah avg 23.6%
1 of 1 · Utah avg 4.5%
Vehicles seen at inspections different VINs, 24 months
Power units: 1
1 tractors
Peterbilt 1
3 power units declared on the MCS-150. Inspections see only part of a fleet, so fewer here is normal; many more can mean the registration is out of date.
Trailers: 1
1 semi-trailers
Includes trailers the company pulled but does not own, such as shipper or leasing trailers.
Most recent inspection
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Apr 29, 2025 | IA | 3 | 15 | Yes |
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 Utah average covers 22,780 vehicle and 39,467 driver inspections of all Utah-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
8 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 15 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 | Utah share |
|---|---|---|---|---|
| Hours-of-Service Compliance | 5 | 0 | 62.5% | 12.6% |
| Driver Fitness | 2 | 2 | 25.0% | 3.3% |
| Unsafe Driving | 1 | 0 | 12.5% | 9.8% |
8 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Age - Operate a CMV while not at least 21 years of age in interstate commerce General Driver Qualification · Driver Fitness · code 39111B1 | 1 | 1 |
| Operating a CMV without a CDL License-related: High · Driver Fitness · code 38323A2 | 1 | 1 |
| False report of drivers record of duty status False Log · Hours-of-Service Compliance · code 3958E | 1 | 0 |
| Driver failed to assume or decline unassigned driving time Incomplete/Wrong Log · Hours-of-Service Compliance · code 39532B | 1 | 0 |
| HOS (ELD) - Driver failing to manually input or verify CMV trailer number. Other Log/Form & Manner · Hours-of-Service Compliance · code 39524C2IIELDTN | 1 | 0 |
| Driver failed to manually add shipping document number Other Log/Form & Manner · Hours-of-Service Compliance · code 39524C2III | 1 | 0 |
| Driver failed to certify the accuracy of the information gathered by the ELD Other Log/Form & Manner · Hours-of-Service Compliance · code 39530B1 | 1 | 0 |
| Failing to use seat belt while operating a CMV Seat Belt · Unsafe Driving · code 39216 | 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 Utah column is the mix across all Utah-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
No reportable crashes in this period.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 4381717 |
|---|---|
| MC / docket | MC1717772 |
| Legal name | DIAMOND SIX S HEAVY HAUL LLC |
| DBA name | 2-15-2025 |
| Operation | Interstate |
| Business type | — |
| Power units | 3 |
| Drivers | 3 |
| Annual mileage | 10 (2024) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Mar 21, 2025 · 1 year ago |
| Last MCS-150 update | Jun 16, 2025 |
| Email domain on file | @outlook.com (free email service) |
Equipment as declared on the MCS-150
| Owned | Term-leased | |
|---|---|---|
| Straight trucks | 3 | 0 |
| Trailers | 6 | 0 |
Term-leased equipment usually belongs to owner-operators driving under this company's authority.
Cargo carried
General FreightBuilding MaterialsGrain, Feed, HayAgricultural/Farm SuppliesConstructionOtherOil Field Equipment
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 SIX S HEAVY HAUL LLC
What does DIAMOND SIX S HEAVY HAUL LLC's operating authority allow?
FMCSA records show no active operating authority for DIAMOND SIX S HEAVY HAUL LLC (MC1717772), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about DIAMOND SIX S HEAVY HAUL LLC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data. There are too few vehicle inspections in the last 24 months to judge the out-of-service rate. 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 DIAMOND SIX S HEAVY HAUL LLC?
Confirm the authority and insurance on the Motus record for USDOT 4381717. Call the company back on the phone number on file, (307) 277-1897, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1717772, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Myton, UT →
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 12:21 UTC.