Carrier90 Carrier90
Blog Pricing

SOUTHWESTERN SCIENTIFIC CO

USDOT 54343 Inactive Interstate
Trust Score
—
not yet scored
TUCSON, AZ · FMCSA public records

Operations

Power units
1
Trucks + tractors
Drivers
1
1.00 per truck
Authority age
52 years
Since 1974
Safety rating
Unrated

What SOUTHWESTERN SCIENTIFIC CO’s FMCSA record shows

Each field from the public registration, and what it means when you’re vetting this carrier.

USDOT number 54343
The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify SOUTHWESTERN SCIENTIFIC CO.
MC number None on file
No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
Operating status Inactive
FMCSA lists this USDOT number as inactive. Inactive carriers shouldn't be dispatched; confirm the company has reactivated before booking a load.
Operation type Interstate
Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
Fleet size 1 power unit, 1 driver
SOUTHWESTERN SCIENTIFIC CO self-reports 1 power unit (trucks and tractors), which makes it an owner-operator. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
Last MCS-150 update Mar 31, 2006
The MCS-150 is the registration form where carriers report their address, fleet size, and operations. SOUTHWESTERN SCIENTIFIC CO last filed it on Mar 31, 2006. That's more than ten years old, so the company details here are essentially unverified.

Safety profile

FMCSA BASIC percentiles, inspection history, and out-of-service rates.

Full safety report

All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.

Crash history

State-reportable crashes, severity breakdown, and time-decayed analysis.

Crash history

Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.

Insurance & compliance

Active policy coverage, insurance carrier, effective dates, and historical gaps.

Insurance details

BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.

Authority & cross-reference

Authority revocation history and chameleon carrier detection across 4.4M records.

Authority & cross-reference

Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.

Frequently asked questions about SOUTHWESTERN SCIENTIFIC CO

Common questions about this carrier, answered from FMCSA public records.

Is SOUTHWESTERN SCIENTIFIC CO a legitimate motor carrier?

SOUTHWESTERN SCIENTIFIC CO is registered with FMCSA under USDOT number 54343. Operating authority status is currently Inactive.

Where is SOUTHWESTERN SCIENTIFIC CO based?

SOUTHWESTERN SCIENTIFIC CO lists its physical address in TUCSON, AZ in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.

Is USDOT 54343 active?

USDOT 54343 (SOUTHWESTERN SCIENTIFIC CO) operating authority status is currently Inactive. Data is sourced from live FMCSA federal records.

How many trucks does SOUTHWESTERN SCIENTIFIC CO operate?

SOUTHWESTERN SCIENTIFIC CO reports 1 power unit and employs 1 driver to FMCSA. These figures come from the carrier's most recent MCS-150 filing.

Get the full report on SOUTHWESTERN SCIENTIFIC CO

Free for the first 50 searches per day. No credit card. One-time email code.

Browse more carriers

Compare SOUTHWESTERN SCIENTIFIC CO with the largest fleets nearby.

Top trucking companies in Arizona Largest US trucking companies

Nearby USDOT numbers

Related resources

Learn more about how to vet carriers and read FMCSA data.

DOT Number Lookup Guide MC Number Lookup Guide CSA Score Guide Pre-Booking Checklist