Diamond K Transport Inc

Highmore, SD · Interstate · 1 power unit · Not rated · USDOT since Jul 23, 2004 (22 years) · Authority since Aug 17, 2004 (22 years)

No risk signals in the last-known data

How risk signals work

Nothing 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.

Operating authority
Last known: Active
MC496134: Contract carrier active
Last known · FMCSA snapshot May 14, 2026
Liability insurance (BI&PD)
$1,000,000
Required minimum: $750,000
No cargo cover filed with FMCSA
Last known · FMCSA snapshot May 14, 2026
Vehicle out-of-service rate
20.0%
1 of 5 vehicle inspections (small sample) · South Dakota avg 23.4%
FMCSA inspections · Oct 20, 2024 – Oct 20, 2026

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.

Verify on MotusCall

Operating authority

MC496134 Last known · FMCSA snapshot May 14, 2026

Contract carrier
Contract Carrier
Active
Liability insurance on file$1,000,000 (required: $750,000)
First grantedAug 17, 2004 (22 years ago)
BOC-3 process agent
Accepts legal papers for the company in each state
ALLAMERICAN AGENTS OF PROCESS
Authority history for MC496134 · 2 events
DateAuthorityAction
Sep 28, 2009Motor carrierReinstated
Aug 17, 2004Motor carrierGranted

3 revocation notices that FMCSA later withdrew, the last on Sep 19, 2017. FMCSA sends one when an insurance or bond filing lapses; it is withdrawn when the filing is made.

Last known status. This authority record comes from the FMCSA snapshot of May 14, 2026, the last one published before FMCSA moved registration to Motus. It may have changed since. Confirm current authority: Motus record for USDOT 1269588

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.

TypeDocketLayerInsurerCoverageEffectiveStatus
Liability (BI&PD)MC496134PrimaryGreat West Casualty Co.
Policy GWP66041A · BMC-91X
$1,000,000Sep 19, 2017Active

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 20, 2024 – Oct 20, 2026

6inspections
20.0%vehicle out-of-service
1 of 5 · South Dakota avg 23.4%
0.0%driver out-of-service
0 of 6 · South Dakota avg 3.6%
1violations written on inspection reports

By quarter inspections and vehicle out-of-service rate

Bar height: inspections in the quarter. Percentage: vehicles put out of service, of vehicle inspections. The first and last quarters are partial.

Where it was inspected 2 states and provinces, 24 months

AK: 0 inspectionsAKME: 0 inspectionsMEVT: 0 inspectionsVTNH: 0 inspectionsNHWA: 0 inspectionsWAID: 0 inspectionsIDMT: 0 inspectionsMTND: 0 inspectionsNDMN: 0 inspectionsMNIL: 0 inspectionsILWI: 0 inspectionsWIMI: 0 inspectionsMINY: 0 inspectionsNYRI: 0 inspectionsRIMA: 0 inspectionsMAOR: 0 inspectionsORNV: 0 inspectionsNVWY: 0 inspectionsWYSD: 2 inspectionsSDIA: 0 inspectionsIAIN: 0 inspectionsINOH: 0 inspectionsOHPA: 0 inspectionsPANJ: 0 inspectionsNJCT: 0 inspectionsCTCA: 4 inspectionsCAUT: 0 inspectionsUTCO: 0 inspectionsCONE: 0 inspectionsNEMO: 0 inspectionsMOKY: 0 inspectionsKYWV: 0 inspectionsWVVA: 0 inspectionsVAMD: 0 inspectionsMDDE: 0 inspectionsDEAZ: 0 inspectionsAZNM: 0 inspectionsNMKS: 0 inspectionsKSAR: 0 inspectionsARTN: 0 inspectionsTNNC: 0 inspectionsNCSC: 0 inspectionsSCDC: 0 inspectionsDCOK: 0 inspectionsOKLA: 0 inspectionsLAMS: 0 inspectionsMSAL: 0 inspectionsALGA: 0 inspectionsGAHI: 0 inspectionsHITX: 0 inspectionsTXFL: 0 inspectionsFL
  1. CA 4 66.7%
  2. SD 2 33.3%

Vehicles seen at inspections different VINs, 24 months

Power units: 2

2 tractors

Kenworth 2Peterbilt 2

1 power unit 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: 2

2 semi-trailers

Wilson 3

Includes trailers the company pulled but does not own, such as shipper or leasing trailers.

6 most recent inspections
DateStateLevelViolationsOut of service
Feb 12, 2026CA20No
Nov 13, 2025SD20No
May 13, 2025CA10No
May 13, 2025CA11Yes
Dec 4, 2024CA20No
Oct 25, 2024SD30No
How these rates are calculated

Period: Oct 20, 2024 – Oct 20, 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 South Dakota average covers 5,277 vehicle and 11,992 driver inspections of all South Dakota-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

1 violation counted in FMCSA's Safety Measurement System (SMS), 1 of them serious enough to put the driver or vehicle out of service.

Category (FMCSA BASIC)ViolationsOut of serviceShareSouth Dakota share
Vehicle Maintenance11100.0%66.4%
1 most frequent violations
ViolationTimesOut of service
Air Brake - Audible air leak at other than a proper connection
Brakes All Others · Vehicle Maintenance · code 39345DBAAL
11

Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 20, 2026. "Share" is this company's mix of violations; the South Dakota column is the mix across all South Dakota-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 20, 2024 – Oct 20, 2026

No reportable crashes in this period.

Company details FMCSA census · Oct 20, 2026

USDOT number1269588
MC / docketMC496134
Legal nameDIAMOND K TRANSPORT INC
OperationInterstate
Business type—
Power units1
Drivers3
Annual mileage130,000 (2026)
HazmatNo
Safety ratingNot rated (no compliance review on record)
USDOT number addedJul 23, 2004 · 22 years ago
Last MCS-150 updateOct 4, 2026
Email domain on file@gmail.com (free email service)

Equipment as declared on the MCS-150

OwnedTerm-leased
Tractors10
Trailers30

Term-leased equipment usually belongs to owner-operators driving under this company's authority.

Cargo carried

General FreightMetal: Sheets, Coils, RollsMotor VehiclesLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsIntermodal ContainersOilfield EquipmentGrain, Feed, HayGarbage/RefuseBeveragesPaper ProductsUtilitiesAgricultural/Farm SuppliesConstruction

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 K Transport Inc

What does Diamond K Transport Inc's operating authority allow?

MC496134: Contract carrier (may haul regulated property for hire under continuing contracts with specific shippers).

Which information about Diamond K Transport Inc 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 Diamond K Transport Inc?

Confirm the authority and insurance on the Motus record for USDOT 1269588. Call the company back on the phone number on file, (916) 508-1518, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC496134, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.

Company details from the FMCSA Company Census File (Oct 20, 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 14:51 UTC.