DIAMOND TRANSPORT CORPORATION
AUTHORIZEDUSDOT
3593431
MC Number
1217971
Fleet Size
5
Total Drivers
5
FMCSA-derived snapshot updated: July 26, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
Broker verification report
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Safety overview
DIAMOND TRANSPORT CORPORATION is a small interstate motor carrier based in MIDDLE RIVER, Maryland, operating 5 power units with 5 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 42.9% runs above the national average of 5.51%. No crashes on file. FMCSA records show 7 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Maryland is 14.0% and the average vehicle OOS rate is 26.0% across 43,724 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
7
Total
78%
Driver %
Insurance on file
Liability (BIPD)
Progressive Casualty Insurance Company — eff. Apr 28, 2026
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: FMCSA Motus. Imported Jul 22, 2026. Verify current filings directly with FMCSA before relying on them.
Crash history
0
Total Crashes
Similar carriers in Maryland
Other carriers in the same state with a similar fleet size.
KENZIE ELECTRIC LLC
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CLINTON TOWING LLC
SDH INC
Frequently asked questions
Is DIAMOND TRANSPORT CORPORATION authorized to operate?
CarrierOwl's FMCSA-derived snapshot for DIAMOND TRANSPORT CORPORATION (USDOT #3593431) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is DIAMOND TRANSPORT CORPORATION's safety record?
DIAMOND TRANSPORT CORPORATION has 7 inspections on file and no crashes on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles directly with FMCSA before relying on them.
How many trucks does DIAMOND TRANSPORT CORPORATION operate?
DIAMOND TRANSPORT CORPORATION operates 5 power units with 5 drivers on file. That makes them a small carrier.
Does DIAMOND TRANSPORT CORPORATION transport hazardous materials?
No. DIAMOND TRANSPORT CORPORATION does not have a hazardous materials flag in the FMCSA database.
Where is DIAMOND TRANSPORT CORPORATION located?
DIAMOND TRANSPORT CORPORATION is based in MIDDLE RIVER, Maryland at 9814 CHARBANK LN, 21220. Phone: (240) 661-3688.
What are DIAMOND TRANSPORT CORPORATION's out-of-service rates?
DIAMOND TRANSPORT CORPORATION's driver out-of-service rate is 42.9%, compared to the national average of 5.51%. Higher than average, which could point to driver compliance issues. Their vehicle out-of-service rate is 50.0% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.