DIAMOND TANK LINES & TRANSPORTATION INC
Operations
What DIAMOND TANK LINES & TRANSPORTATION INC’s FMCSA record shows
Each field from the public registration, and what it means when you’re vetting this carrier.
- USDOT number 274890
- The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify DIAMOND TANK LINES & TRANSPORTATION INC.
- MC number None on file
- No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
- Operating status Inactive
- FMCSA lists this USDOT number as inactive. Inactive carriers shouldn't be dispatched; confirm the company has reactivated before booking a load.
- Operation type Interstate
- Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
- Fleet size 13 power units, 8 drivers
- DIAMOND TANK LINES & TRANSPORTATION INC self-reports 13 power units (trucks and tractors), which makes it a mid-size fleet. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
- Last MCS-150 update Jul 2, 2025
- The MCS-150 is the registration form where carriers report their address, fleet size, and operations. DIAMOND TANK LINES & TRANSPORTATION INC last filed it on Jul 2, 2025. That's within FMCSA's two-year update requirement, so the company details here are reasonably current.
Safety profile
FMCSA BASIC percentiles, inspection history, and out-of-service rates.
Full safety report
All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.
Crash history
State-reportable crashes, severity breakdown, and time-decayed analysis.
Crash history
Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.
Insurance & compliance
Active policy coverage, insurance carrier, effective dates, and historical gaps.
Insurance details
BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.
Authority & cross-reference
Authority revocation history and chameleon carrier detection across 4.4M records.
Authority & cross-reference
Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.
Change history
1 recorded change to DIAMOND TANK LINES & TRANSPORTATION INC’s FMCSA record. Derived from monthly FMCSA Census snapshots.
Oct 24, 2023
to
Jul 2, 2025
Frequently asked questions about DIAMOND TANK LINES & TRANSPORTATION INC
Common questions about this carrier, answered from FMCSA public records.
Is DIAMOND TANK LINES & TRANSPORTATION INC a legitimate motor carrier?
DIAMOND TANK LINES & TRANSPORTATION INC is registered with FMCSA under USDOT number 274890. Operating authority status is currently Inactive.
Where is DIAMOND TANK LINES & TRANSPORTATION INC based?
DIAMOND TANK LINES & TRANSPORTATION INC lists its physical address in SAN JOSE, CA in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.
Is USDOT 274890 active?
USDOT 274890 (DIAMOND TANK LINES & TRANSPORTATION INC) operating authority status is currently Inactive. Last verified by Carrier90 on April 17, 2026. Data is sourced from live FMCSA federal records.
How many trucks does DIAMOND TANK LINES & TRANSPORTATION INC operate?
DIAMOND TANK LINES & TRANSPORTATION INC reports 13 power units and employs 8 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.
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Nearby USDOT numbers
- ENERGY DRILLING CO DOT 274887
- ELMER F KNIGHT JR DOT 274888
- L&W ENERGY DOT 274889
- J R MCCLENDON DOT 274891
- CARL SANDLIN DOT 274892
- LA ROCHE INDUSTRIES INC DOT 274893
Related resources
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