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Bill Polkinhorn Incorporated (DOT# 506308) – FMCSA Carrier Profile

doing business as GOLDEN WEST TRANSPORT
DOT# 506308MC# 258822● Active
Updated: 2026-03-09

Bill Polkinhorn Incorporated is a registered motor carrier with the FMCSA under USDOT number 506308. The company operates from Calexico, CA and maintains an active operating status with 12 power units and 12 drivers on record.

Safety Rating

FMCSA Safety Rating
✓ Satisfactory
Rated: March 20, 2007

Bill Polkinhorn Incorporated holds a "Satisfactory" safety rating from the Federal Motor Carrier Safety Administration (FMCSA). This rating indicates that the carrier has been found to comply with federal safety regulations based on the most recent compliance review conducted by FMCSA. View official FMCSA record →

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Company Information

Address2401 Portico Blvd, Calexico, CA, 92231
Phone(760) 890-8721
Emailbill.polkinhorn@polkinhorn.us
Entity TypeAuthorized For Hire
OperationInterstate
Power Units12
Drivers12
MCS-150 FiledFebruary 25, 2026
Annual Mileage500,000 mi (2025)
All carriers in California→Carriers in Calexico, CA→

Inspection Summary

All-time Inspections
All-time
263
Total
31
OOS
2
Driver OOS
29
Vehicle OOS
OOS Rate11.79%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
2.4
Unsafe Driving
0.0
HOS Compliance
0.1
Driver Fitness
0.0
Controlled Substances
3.5
Vehicle Maintenance
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Frequently Asked Questions

What is USDOT Number 506308?
USDOT number 506308 is assigned to Bill Polkinhorn Incorporated, an active motor carrier registered with the FMCSA, based in Calexico, CA.
What is the safety rating of Bill Polkinhorn Incorporated?
Bill Polkinhorn Incorporated has a safety rating of Satisfactory as of March 20, 2007.
How many inspections has Bill Polkinhorn Incorporated had?
Bill Polkinhorn Incorporated has recorded 263 total inspections with 31 out-of-service orders, representing an OOS rate of 11.79%.
Where is Bill Polkinhorn Incorporated located?
Bill Polkinhorn Incorporated is headquartered at 2401 Portico Blvd, Calexico, CA 92231.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 506308 · Last updated: 2026-03-09. View official FMCSA record →