DIAMOND MATERIALS LLC
Quick checks from the federal record
Authority active
FMCSA currently lists this operating authority as active.
Tenure: 52 years
Registration history dates back to 1974 — an established federal record.
FMCSA record timeline
MC Look Up archives every monthly census filing and diffs them field-by-field — 3 changes tracked for USDOT 45597 so far.
138
to
139
116
to
117
Sep 17, 2024
to
Jul 2, 2025
Registration & fleet profile
From 1 archived monthly FMCSA census snapshot for this carrier.
- MCS-150 filing: Sep 17, 2024 — within the biennial update window
- Reported annual mileage: 563,274 miles (2024) — ≈4,052 per truck
- Company officers: RICHARD E. PIERSON, JR · TONI WOOD
- Operation class: Authorized for-hire
No analyst narrative exists yet for DIAMOND MATERIALS LLC. Running a full vetting search generates one — a plain-English readout of the flags, history, and network signals on this page.
What the full workup adds
BASIC percentile detail
Each of the seven BASIC measures with percentile, threshold status, and inspection counts behind it.
Crash-by-crash record
Every reportable crash with date, state, severity, and tow-away status — fleet-normalized.
Live insurance verification
Current BI&PD and cargo coverage against federal minimums, with effective dates and lapse detection.
Full identity graph
Complete shared-phone/address/officer map with revocation overlays, not just the sample above.
Common questions about DIAMOND MATERIALS LLC
When did DIAMOND MATERIALS LLC last update its MCS-150 filing?
The MCS-150 on file dates from 1.2 years ago. That's within FMCSA's required biennial update window.
Who is the listed company officer for DIAMOND MATERIALS LLC?
RICHARD E. PIERSON, JR and TONI WOOD appear as company officers on the FMCSA registration for USDOT 45597. Officer names are one of the identity fields MC Look Up cross-references against revoked carriers.
How long has USDOT 45597 been registered?
DIAMOND MATERIALS LLC first appears in FMCSA records in 1974, giving it roughly 52 years of registration history. Carriers under 12 months old statistically carry the highest risk of identity fraud and double-brokering.
What size fleet does DIAMOND MATERIALS LLC run?
The latest filing reports 139 power units and 117 drivers — a large operation in MC Look Up's fleet segmentation.
Is USDOT 45597 authorized to operate right now?
As of the latest FMCSA sync, USDOT 45597 (DIAMOND MATERIALS LLC) shows authority status: Active. MC Look Up re-syncs carrier records on a rolling ~48-hour cycle, so this reflects the current federal register, not a stale snapshot.
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