DIAMOND MATERIALS LLC
Operations
What DIAMOND MATERIALS LLC’s FMCSA record shows
Each field from the public registration, and what it means when you’re vetting this carrier.
- USDOT number 45597
- 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 MATERIALS LLC.
- MC number MC 76472
- An MC (docket) number means the company applied for interstate operating authority to haul regulated freight for hire or to broker loads. Brokers and shippers usually check MC authority before booking.
- Operating status Active
- FMCSA lists this USDOT number as active. Active status alone doesn't confirm current insurance or operating authority; those are separate checks.
- Operation type Interstate
- Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
- Fleet size 139 power units, 117 drivers
- DIAMOND MATERIALS LLC self-reports 139 power units (trucks and tractors), which makes it a large 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 MATERIALS LLC 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
3 recorded changes to DIAMOND MATERIALS LLC’s FMCSA record. Derived from monthly FMCSA Census snapshots.
138
to
139
116
to
117
Sep 17, 2024
to
Jul 2, 2025
Frequently asked questions about DIAMOND MATERIALS LLC
Common questions about this carrier, answered from FMCSA public records.
Is DIAMOND MATERIALS LLC a legitimate motor carrier?
DIAMOND MATERIALS LLC is registered with FMCSA under USDOT number 45597. Operating authority status is currently Active. Carrier90's trust score of 95/100 yields a APPROVE verdict based on safety, insurance, authority, and crash data.
What is DIAMOND MATERIALS LLC's safety score?
Carrier90 scores DIAMOND MATERIALS LLC at 95 out of 100 with a APPROVE verdict. The score combines FMCSA BASIC percentiles, crash history, insurance status, operating authority, and chameleon carrier detection signals.
Where is DIAMOND MATERIALS LLC based?
DIAMOND MATERIALS LLC lists its physical address in WILMINGTON, DE in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.
Is USDOT 45597 active?
USDOT 45597 (DIAMOND MATERIALS LLC) operating authority status is currently Active. Last verified by Carrier90 on October 15, 2026. Data is sourced from live FMCSA federal records.
How many trucks does DIAMOND MATERIALS LLC operate?
DIAMOND MATERIALS LLC reports 139 power units and employs 117 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.
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