Fleet typeIdentity
Asset-based
21 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 1989255 · MC-703746 · Updated Jun 13, 2026
Shamrock Tank Lines
21 power unitsCASTAIC, CA50/100
CARRIER INACTIVEMC-703746 INACTIVERATED CONDITIONALHAZMAT
Observed fleet · trailing 24 mo daily
21Power units
Self-reported · MCS-150
—Trailers seen
None observed · 24 mo
—Avg age (yr)
Not yet decoded
Click to see how we scored it
Load decision · FMCSA snapshot · Jun 13, 2026
Limited record
Not enough federal record to assess. Verify authority and insurance directly.
Watch · 4
USDOT registration inactiveThe USDOT record is flagged inactive — the carrier may not be authorized to operate.No active operating authorityNo active common, contract, or broker authority is on file for a for-hire carrier.No inspection history despite active fleetAn established carrier reporting 21 power units has no roadside inspections — a common shell/paper-carrier signal.MCS-150 census data outdatedThe biennial MCS-150 update is 8.8 years old; fleet/mileage figures may be unreliable.
In good standing · 1
USDOT registration1616 yr registered
No active authorityInsurance (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
—
Not yet decoded
Identity stabilityStable
16 yr unchanged
Same registration since 2010 — no chameleon / reincarnation signal.
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Verification summary
SHAMROCK TANK LINES (USDOT 1989255) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Jun 13, 2026.
The carrier has no active for-hire operating authority per FMCSA L&I as of Jun 13, 2026.
It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.
The carrier received 0 roadside inspections in the last 24 months — 0 vehicle-level and 0 driver-level, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.
The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.
It reports 21 power units and 21 drivers in its most recent MCS-150 filing dated Oct 16, 2017.
It has an FMCSA safety rating of Conditional assigned Oct 21, 2013 in the federal record refreshed Jun 13, 2026.
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Frequently asked
What is SHAMROCK TANK LINES's USDOT number?
SHAMROCK TANK LINES's USDOT number is 1989255, and its motor carrier number is MC-703746.
Is SHAMROCK TANK LINES authorized to operate?
As of Jun 13, 2026, SHAMROCK TANK LINES is inactive in the FMCSA register with common, contract, broker operating authority on file.
How big is SHAMROCK TANK LINES's fleet?
SHAMROCK TANK LINES operates 21 power units and 21 drivers per its most recent MCS-150 filing.
Where is SHAMROCK TANK LINES based?
SHAMROCK TANK LINES is based in CASTAIC, CA.
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