Diamond Transport Corporation

USDOT activeAuthority activeCarrier · Interstate
  • USDOT3593431
  • MC1217971
  • LocationMiddle River, MD
  • Phone(240) 661-3688
  • Fleet5 power units · 5 drivers

Diamond Transport Corporation (USDOT 3593431, MC-1217971) is an interstate motor carrier based in Middle River, Maryland with 5 power units and 5 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 7 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 12, 2026

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Operating authority

Status from the FMCSA Company Census File, November 12, 2026

DocketAuthority typeStatus
MC-1217971Motor Carrier of Property (except Household Goods)Active

First granted on April 13, 2021 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 13, 2026

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$750,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XProgressive Casualty Insurance Company$750,000Jun 6, 2026
Insurance history: 11 past filings
TypeInsurerEffectiveEndedReason
Form BMC-35Progressive Casualty Insurance CompanyJun 6, 2026Jun 6, 2026—
Liability (BIPD)Progressive Casualty Insurance CompanyMay 16, 2026—Replaced
Liability (BIPD)Progressive Casualty Insurance CompanyMay 1, 2026Apr 28, 2026Replaced
Liability (BIPD)Progressive Casualty Insurance CompanyApr 28, 2026—Replaced
Liability (BIPD)Progressive Casualty Insurance CompanyMar 6, 2026May 1, 2026Term / cancl
Liability (BIPD)Agency Insurance Company of Maryland, IncJul 31, 2024Apr 7, 2026Term / cancl
Liability (BIPD)Agency Insurance Company of Maryland, IncApr 20, 2023Jul 31, 2024Replaced
Liability (BIPD)Agency Insurance Company of Maryland, IncApr 7, 2023Jun 5, 2023Term / cancl
Liability (BIPD)National Indemnity CompanyApr 7, 2022Apr 7, 2023Cancel
Liability (BIPD)Agency Insurance Company of Maryland, IncApr 7, 2021Apr 7, 2021Replaced
Liability (BIPD)National Indemnity CompanyApr 7, 2021Apr 7, 2022Replaced

Process agent (BOC-3)

Evilsizor Process Servers Inc, Littleton, CO

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

7
Inspections
1 with no violations
42.9%
Driver out-of-service
3 of 7 inspections
50.0%
Vehicle out-of-service
1 of 2 inspections
1
Crashes
1 fatal · 0 injury · 0 tow-away

Inspected most often in: New Jersey (3), Connecticut (2), Massachusetts (1), Pennsylvania (1).

Most recent inspection on file: March 4, 2026.

FMCSA safety rating: Not rated

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 — Common carrier authorityDiscontinued revocation on August 2, 2024
  2. Involuntary revocation — Common carrier authorityDiscontinued revocation on April 7, 2023
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on April 8, 2022
  4. Granted — Common carrier authority; Motor Carrier of Property (except Household Goods)

Fleet and operations

From the company’s own registration (Form MCS-150), updated May 4, 2026

Power units
5
Trucks
5
Trucks owned
5
Drivers
5
CDL drivers
0
Interstate drivers
5
Miles traveled
128,700 (2025)
Classification
Authorized for hire
Hazardous materials
No
USDOT registered
March 19, 2021
Address
9814 Charbank Ln, Middle River, MD 21220
Phone (registered with FMCSA)
(240) 661-3688

Cargo carried

  • General freight

Key facts

  • USDOT number 3593431 was registered on March 19, 2021.
  • Operating authority MC-1217971 was first granted on April 13, 2021.
  • The company last updated its FMCSA registration (Form MCS-150) on May 4, 2026.
  • It reported 128,700 vehicle miles traveled in 2025.
  • One insurance filing is on file, including Liability (BIPD) coverage with Progressive Casualty Insurance Company.
  • It had 7 roadside inspections in the last 24 months; 1 inspection recorded no violations.
  • FMCSA records list 1 reportable crash in the last 24 months.
  • Its process agent filing (BOC-3) is with Evilsizor Process Servers Inc.

Other carriers in Middle River, MD

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