Samuel J Piazza & Son Inc (DOT# 391314 · MC# 231685) – FMCSA Carrier Profile
doing business as PIAZZA TRUCKING
DOT# 391314MC# 231685● Active
Updated monthly · 2026-03-09
This carrier is active with a Satisfactory safety rating.
Samuel J Piazza & Son Inc is a registered motor carrier with the FMCSA under USDOT number 391314. The company operates from South Gate, CA and maintains an active operating status with 38 power units and 49 drivers on record.
Safety Rating
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Company Information
Address9001 Rayo Ave, South Gate, CA, 90280
Phone(323) 357-1999
Entity TypeAuthorized For Hire
OperationInterstate
Power Units38(Medium carrier)
Drivers49
MCS-150 FiledJune 5, 2025
Annual Mileage3,014,584 mi (2025)
Inspection Summary
All-time Inspections
All-time116
Total
11
OOS
3
Driver OOS
8
Vehicle OOS
116 inspections indicates a high-volume, actively operating carrier.
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 9.5% — below the national vehicle OOS average of ~21%.
Crash History
Crash Records
All-time1
Total
0
Fatal
0
Injuries
0
Tow-Away
1 crash recorded. Low count, but crash data should always be reviewed alongside inspection history.
BASICS Safety Scores
BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories1.3
Unsafe Driving
Measures violations related to speeding, reckless driving, and improper lane changes.
0.2
HOS Compliance
Tracks hours-of-service violations, including driving beyond legal limits without rest.
0.1
Driver Fitness
Reflects issues with driver qualifications, licenses, and medical certifications.
0.0
Controlled Substances
Captures drug and alcohol violations, including failed or refused tests.
1.7
Vehicle Maintenance
Reflects brake, tire, lighting, and other equipment-related inspection violations.
Scores above 65 (general freight) or 50 (passenger/hazmat) trigger an FMCSA Alert. Higher scores indicate more safety risk. National median is approximately 20–30 for active carriers.
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Frequently Asked Questions
What is USDOT Number 391314?
USDOT number 391314 is assigned to Samuel J Piazza & Son Inc, an active motor carrier registered with the FMCSA, based in South Gate, CA.
What is the safety rating of Samuel J Piazza & Son Inc?
Samuel J Piazza & Son Inc has a safety rating of Satisfactory as of February 2, 2011.
How many inspections has Samuel J Piazza & Son Inc had?
Samuel J Piazza & Son Inc has recorded 116 total inspections with 11 out-of-service orders, representing an OOS rate of 9.48%.
Where is Samuel J Piazza & Son Inc located?
Samuel J Piazza & Son Inc is headquartered at 9001 Rayo Ave, South Gate, CA 90280.
What does "Not Rated" mean?
"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.
Is zero crashes always a good sign?
Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.
What is a normal OOS rate?
The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.
How often is FMCSA data updated?
FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.
What is the MC number for Samuel J Piazza & Son Inc?
The MC number for Samuel J Piazza & Son Inc is MC# 231685. The MC number is issued by the FMCSA and authorizes carriers to operate in interstate commerce.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 391314 · Last updated: 2026-03-09. View official FMCSA record →