FMCSA Carrier Profile
WILLIAM FRANK PROUGH
DBA: Bill Prough Trucking
Inactive
No Safety Rating
Active 20 yrs, 6 mo
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
83rd pct · No inspection records on file
Flags · 2
Elevated Safety Percentile
This carrier ranks in the 83rd percentile for safety violations among peer carriers — above FMCSA's 65th-percentile alert threshold.
Inactive Carrier Status
FMCSA lists this carrier as inactive. Confirm current operating status before booking.
Vetting Notes
WILLIAM FRANK PROUGH is an inactive FMCSA-registered motor carrier based in Mariposa, California, operating under DOT 742989. No high-severity flags were found on authority or insurance records. 2 notes for review: elevated safety percentile, inactive carrier status. No FMCSA roadside inspection records are on file for this carrier yet.
FMCSA Registration
DOT Number
742989
Operating Status
Inactive
Safety Rating
Not Rated
Entity Type
Individual
MCS-150 Filed
August 25, 2010
FMCSA Registration
April 21, 1998
Authority Reinstated
January 17, 2006
Annual Mileage
100,000 mi (2001)
Contact Information
Location
Mariposa, CA
Operating Authority
MC337612
Common Carrier, Contract Carrier, Broker
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Safety Percentile
83rd percentile
vs. peer carriers
⚠ Above FMCSA alert threshold (65th pct) · lower percentile = fewer violations than peers · source: FMCSA SMS
Authority History
| Date | Status | Type |
|---|---|---|
| January 17, 2006 | REINSTATED | Common Carrier |
| December 3, 2003 | GRANTED | Common Carrier |
| August 31, 1999 | INVOLUNTARY REVOCATION | Common |
| September 2, 1998 | INVOLUNTARY REVOCATION | Common |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| December 14, 2005 | COMMON | On Record |
| October 10, 2003 | COMMON | On Record |
Other Carriers in Mariposa, CA
Data sourced from FMCSA MCMIS via Socrata. Last updated: August 7, 2026.
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