UNITED SITE SERVICES OF FLORIDA LLC
AUTHORIZEDDBA: USS UNITED SITE SERVICES
USDOT
929460
MC Number
N/A
Fleet Size
469
Total Drivers
306
Last updated: March 15, 2026
Safety overview
UNITED SITE SERVICES OF FLORIDA LLC is a large interstate motor carrier based in WESTBOROUGH, Massachusetts, operating 469 power units with 306 drivers. Their safety profile raises flags: 5 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 3.4% comes in under the 5.51% national average. They have 19 crashes on file (10 with injuries). FMCSA records show 119 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Massachusetts is 13.3% and the average vehicle OOS rate is 27.8% across 37,564 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
119
Total
73%
Driver %
Crash history
19
Total Crashes
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Frequently asked questions
Is UNITED SITE SERVICES OF FLORIDA LLC authorized to operate?
Yes. UNITED SITE SERVICES OF FLORIDA LLC (USDOT #929460) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is UNITED SITE SERVICES OF FLORIDA LLC's safety record?
UNITED SITE SERVICES OF FLORIDA LLC has 5 BASIC scores above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.
How many trucks does UNITED SITE SERVICES OF FLORIDA LLC operate?
UNITED SITE SERVICES OF FLORIDA LLC operates 469 power units with 306 drivers on file. That puts them in the large carrier category by FMCSA standards.
Does UNITED SITE SERVICES OF FLORIDA LLC transport hazardous materials?
No. UNITED SITE SERVICES OF FLORIDA LLC does not have a hazardous materials flag in the FMCSA database.
Where is UNITED SITE SERVICES OF FLORIDA LLC located?
UNITED SITE SERVICES OF FLORIDA LLC is based in WESTBOROUGH, Massachusetts at 118 FLANDERS RD, 01581. Phone: (774) 512-2001.
What are UNITED SITE SERVICES OF FLORIDA LLC's out-of-service rates?
UNITED SITE SERVICES OF FLORIDA LLC's driver out-of-service rate is 3.4%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 28.9% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.