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Diamond Trucking Inc

Doing business as Diamond Trucking

USDOT activeAuthority activeCarrier & Cargo tank & Shipper · InterstateHazmat
  • USDOT491637
  • MC240905
  • LocationPhoenix, AZ
  • Fleet76 power units · 81 drivers

Diamond Trucking Inc (USDOT 491637, MC-240905) is an interstate motor carrier based in Phoenix, Arizona with 76 power units and 81 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 132 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 11, 2026

Operating authorityActive · MC-240905Motor Carrier of PropertyLiability insurance$5,000,000 on fileRequired: $1,000,000Safety ratingSatisfactoryRated Oct 1, 2008Out-of-service ordersNone on fileFMCSA out-of-service orders fileRegistration (MCS-150)Updated Jan 14, 20269 months agoProcess agent (BOC-3)On fileProcess Agent Service Company, Inc.

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Operating authority

Status from the FMCSA Company Census File, November 11, 2026

DocketAuthority typeStatus
MC-240905Motor Carrier of Property (except Household Goods)Active

First granted on March 16, 1992 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 12, 2026

  • Liability (BIPD) required$1,000,000
  • Liability (BIPD) on file$5,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XGeneral Star Indemnity Company$3,000,000Jun 1, 2026
Liability (BIPD) BMC-91XNational Interstate Insurance Company$2,000,000May 1, 2022
Cargo BMC-34National Interstate Insurance Company$5,000May 1, 2022
Insurance history: 21 past filings
TypeInsurerEffectiveEndedReason
Form BMC-35General Star Indemnity CompanyJun 1, 2026Jun 1, 2026—
Liability (BIPD)General Star Indemnity CompanyJun 1, 2025Jun 1, 2026Cancel
Liability (BIPD)General Star Indemnity CompanyJun 1, 2024Jun 1, 2025Replaced
Liability (BIPD)General Star Indemnity CompanyJun 1, 2023Jun 1, 2024Replaced
Liability (BIPD)General Star Indemnity CompanyMay 1, 2023Jun 8, 2023Term / cancl
Liability (BIPD)General Star Indemnity CompanyMay 1, 2022May 1, 2023Cancel
Liability (BIPD)General Star Indemnity CompanyMay 1, 2021May 1, 2022Cancel
Liability (BIPD)General Star Indemnity CompanyMay 1, 2020May 1, 2021Cancel
Liability (BIPD)General Star Indemnity CompanyMay 1, 2019May 1, 2020Cancel
Liability (BIPD)General Star Indemnity CompanyMay 1, 2018May 1, 2019Cancel
Liability (BIPD)Great West Casualty Co.Apr 30, 2013May 1, 2022Replaced
Liability (BIPD)Hallmark Insurance CompanyAug 28, 2012Jun 3, 2013Namechg
Liability (BIPD)Hallmark Insurance CompanyMay 1, 2012Aug 28, 2012Replaced
Liability (BIPD)Lexington Insurance CompanyMay 1, 2009May 16, 2013Cancel
Liability (BIPD)Great West Casualty Co.May 4, 2003Jun 3, 2013Term / cancl
Liability (BIPD)National Indemnity CompanyMay 4, 2002May 4, 2003Cancel
Liability (BIPD)Gulf Insurance Co.May 4, 2001May 4, 2002Cancel
Liability (BIPD)National Farmers Union Prop. and Cas. Co.Jun 19, 2000May 4, 2001Cancel
Liability (BIPD)National Farmers Union Prop. and Cas. Co.May 4, 2000Jun 19, 2000Replaced
Liability (BIPD)National Farmers Union Prop. and Cas. Co.Jul 31, 1995May 4, 2000Cancel
Liability (BIPD)Great West Casualty Co.Nov 29, 1993Jul 27, 1995Cancel

Process agent (BOC-3)

Process Agent Service Company, Inc., Sioux Falls, SD

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

132
Inspections
101 with no violations
0.0%
Driver out-of-service
0 of 132 inspections
1.6%
Vehicle out-of-service
2 of 127 inspections
5
Crashes
0 fatal · 2 injury · 3 tow-away

Inspected most often in: Arizona (89), New Mexico (31), Kansas (4), Colorado (3), Oklahoma (2).

Most recent inspection on file: October 30, 2026.

FMCSA safety rating: Satisfactory (rated October 1, 2008)

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 30, 2024
  2. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 26, 2023
  3. Reinstated — Contract carrier authority; Motor Carrier of Property (except Household Goods)
  4. Involuntary revocation — Contract carrier authority
  5. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 3, 2022
  6. Involuntary revocation — Contract carrier authorityDiscontinued revocation on April 29, 2021
  7. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 4, 2020
  8. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 1, 2019
Show 5 earlier events
  1. Involuntary revocation — Contract carrier authorityDiscontinued revocation on May 2, 2013
  2. Involuntary revocation — Contract carrier authorityDiscontinued revocation on July 1, 2002
  3. Involuntary revocation — Contract carrier authorityDiscontinued revocation on June 29, 2000
  4. Involuntary revocation — Contract carrier authorityDiscontinued revocation on September 28, 1995
  5. Granted — Contract carrier authorityRevoked on May 8, 2023

Fleet and operations

From the company’s own registration (Form MCS-150), updated January 14, 2026

Power units
76
Trucks
76
Tractors owned
68
Drivers
81
CDL drivers
81
Interstate drivers
81
Miles traveled
6,043,936 (2025)
Classification
Authorized for hire
Hazardous materials
Yes
USDOT registered
July 21, 1992
Address
Phoenix, AZ

Cargo carried

  • General freight
  • Building materials
  • Liquids / gases
  • Chemicals
  • Commodities dry bulk
  • Construction
  • Motor fuels

Key facts

  • USDOT number 491637 was registered on July 21, 1992.
  • Operating authority MC-240905 was first granted on March 16, 1992.
  • The company last updated its FMCSA registration (Form MCS-150) on January 14, 2026.
  • It reported 6,043,936 vehicle miles traveled in 2025.
  • 3 insurance filings are on file, including Liability (BIPD) coverage with General Star Indemnity Company.
  • It had 132 roadside inspections in the last 24 months; 101 inspections recorded no violations.
  • FMCSA records list 5 reportable crashes in the last 24 months.
  • Its most recent FMCSA safety rating is Satisfactory, issued on October 1, 2008.
  • Its process agent filing (BOC-3) is with Process Agent Service Company, Inc..

Other carriers in Phoenix, AZ

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