Fleet typeIdentity
Small fleet
4 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 458928 · Updated 06/13/2026
CONSTRUCTION MATERIALS LABORATORY
DBA LLEWELLYN & ASSOCIATES INC
4 power unitsKNOXVILLE, TN
AUTHORITY STATUS UNKNOWN
Observed fleet · trailing 24 mo daily
4Power units
Self-reported · MCS-150
—Trailers seen
None observed · 24 mo
—Avg age (yr)
Awaiting decode
Carrier verification summary for CONSTRUCTION MATERIALS LABORATORY
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) is unrated by Vektor because the deterministic FMCSA record does not contain enough evidence for a safety score as of 06/13/2026.
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of 06/13/2026.
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot row is available as of 06/13/2026.
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of 06/13/2026.
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) reports 4 power units and 4 drivers in its most recent MCS-150 filing dated 10/03/2018.
CONSTRUCTION MATERIALS LABORATORY (USDOT 458928) has no FMCSA-assigned safety rating in the federal record refreshed 06/13/2026.
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Limited record
Not enough federal record to assess. Verify authority and insurance directly.
Established 35 yearsMCS-150 census data outdated
USDOT registration3434 yr registered
Authority not on fileInsurance (BIPD)— unknown
No filing on recordVehicle OOS · 24-mo—
No inspections · 24 moCrashes · fatal00
No activity in windowVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersDecoding
—
Awaiting VIN decode
Identity stabilityStable
34 yr unchanged
Same registration since 1991 — no chameleon / reincarnation signal.
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Frequently asked
What is CONSTRUCTION MATERIALS LABORATORY's USDOT number?
CONSTRUCTION MATERIALS LABORATORY's USDOT number is 458928.
Is CONSTRUCTION MATERIALS LABORATORY authorized to operate?
As of 2026-06-13, CONSTRUCTION MATERIALS LABORATORY is active in the FMCSA register.
What is CONSTRUCTION MATERIALS LABORATORY's safety record?
CONSTRUCTION MATERIALS LABORATORY has a —% vehicle out-of-service rate across 1 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor does not assign this carrier a safety score — there is not enough federal record to assess it.
How big is CONSTRUCTION MATERIALS LABORATORY's fleet?
CONSTRUCTION MATERIALS LABORATORY operates 4 power units and 4 drivers per its most recent MCS-150 filing.
Where is CONSTRUCTION MATERIALS LABORATORY based?
CONSTRUCTION MATERIALS LABORATORY is based in KNOXVILLE, TN.
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