Diamond Materials LLC

USDOT 45597 · MC76472 · Wilmington, DE
USDOT ActiveCommon authorityHazmatSafety: Conditional
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Company snapshot
Legal name
Diamond Materials LLC
USDOT number
45597
MC docket
MC76472
Physical address
924 S Heald St, Wilmington, DE, 19801
Power units
139
Drivers
117
Operation
Interstate
Operating radius
Interstate <100 mi
Cargo
Logs, Poles, Beams, Lumber, Building Materials, Machinery, Large Objects, Liquids/Gases, Garbage, Refuse, Trash, Chemicals
Operation class
Authorized For-Hire, Private Property
Last MCS-150 filing
Jul 2, 2025
Operating authority (as of 5/2026)
Common authority
Active
Broker authority
Not held
Authority granted
Jun 1, 1974
MCSIP step
0
Insurance on file
Insurer (writing paper)
Arch Insurance Company
Filing form
BMC-91X
Coverage amount
$1,000,000
BI/PD on file
$1,000,000
Estimated renewal window
Q1 2027

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Safety record
FMCSA safety rating
Conditional
Roadside inspections (24 mo)
133
Out-of-service inspections
11
Inspections with violations
55
Crashes (24 mo)
9
BASICs with acute/critical violations
0
SMS population
Interstate
Common questions

Is Diamond Materials LLC insured?

Yes. Diamond Materials LLC (USDOT 45597) has active BI/PD liability insurance on file with FMCSA, currently written by Arch Insurance Company, with $1,000,000 in coverage on the filing.

What insurance company does Diamond Materials LLC use?

Diamond Materials LLC's current BI/PD filing is written by Arch Insurance Company. Insurer changes show up in the daily-refreshed federal filing record.

What is Diamond Materials LLC's MC number?

Diamond Materials LLC's FMCSA docket is MC76472, paired with USDOT 45597.

Is Diamond Materials LLC safe to work with?

Diamond Materials LLC's FMCSA safety rating is Conditional, with 133 roadside inspections in the last 24 months, 9 recorded crashes, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page.

When does Diamond Materials LLC's insurance renew?

Based on its filing history, Diamond Materials LLC's BI/PD policy is estimated to renew in Q1 2027. The exact estimated X-date, with alerts when it changes, is in Market Tracker. Unlock USDOT 45597’s exact X-date →

How many trucks does Diamond Materials LLC operate?

Diamond Materials LLC reports 139 power units and 117 drivers in its latest MCS-150 census filing.

Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Sep 15, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.

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