Diamond Materials LLC (USDOT 45597)

1 issue to review.

Docket (MC) number

MC76472

Operating authority

Common carrier authority: active.

Insurance on file

Liability (BIPD) insurance on file for $1,000,000.

Safety rating

Conditional (rating decision 1988-05-26)

Fleet on file

139 power units, 117 drivers

Operation type

Interstate

Physical address

924 S HEALD ST, WILMINGTON, DE 19801

MCS-150 last filed

2025-07

Findings

• Conditional or unsatisfactory safety rating (Critical): FMCSA rating: Conditional. Compliance issues found at last review; carrier remains authorized to operate

Frequently asked questions

What carrier is USDOT 45597?

USDOT 45597 is Diamond Materials LLC, an interstate motor carrier.

What carrier is MC 76472?

MC 76472 is the docket number of Diamond Materials LLC, USDOT 45597.

What is Diamond Materials LLC's MC number?

Diamond Materials LLC's docket number is MC 76472. Its USDOT number is 45597.

Is Diamond Materials LLC currently authorized to operate?

Common carrier authority: active. Source: FMCSA registration and licensing records.

Does Diamond Materials LLC have insurance on file with FMCSA?

Liability (BIPD) insurance on file for $1,000,000.

Who provides Diamond Materials LLC's insurance?

Diamond Materials LLC's liability insurance is filed with FMCSA by Arch Insurance Company.

What is Diamond Materials LLC's safety record?

In the last 24 months, FMCSA records show 92 roadside inspections with a 9.8% vehicle out-of-service rate (national average 22.8%) and 9 recordable crashes.

What is Diamond Materials LLC's CSA score?

FMCSA does not publish a single CSA score for carriers. Diamond Materials LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.

What is Diamond Materials LLC's FMCSA safety rating?

Diamond Materials LLC's FMCSA safety rating is Conditional, from a review decided 1988-05-26.

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