WINTERSUN INTERNATIONAL INC
AUTHORIZEDDBA: WINTERSUN CHEMICAL
USDOT
2809945
MC Number
N/A
Fleet Size
3
Total Drivers
3
Last updated: March 11, 2026
Safety overview
WINTERSUN INTERNATIONAL INC is a small intrastate only (hazmat) motor carrier based in ONTARIO, California, operating 3 power units with 3 drivers. 1 of their 5 BASIC scores sits above the 75th percentile intervention threshold. The rest fall within acceptable ranges. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. No crashes on file. FMCSA records show 5 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 California is 8.9% and the average vehicle OOS rate is 22.3% across 311,254 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Hazmat)
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- Yes
- 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
5
Total
56%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is WINTERSUN INTERNATIONAL INC authorized to operate?
Yes. WINTERSUN INTERNATIONAL INC (USDOT #2809945) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (hazmat) carrier.
What is WINTERSUN INTERNATIONAL INC's safety record?
WINTERSUN INTERNATIONAL INC has 1 BASIC score 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 WINTERSUN INTERNATIONAL INC operate?
WINTERSUN INTERNATIONAL INC operates 3 power units with 3 drivers on file. That makes them a small carrier.
Does WINTERSUN INTERNATIONAL INC transport hazardous materials?
Yes. WINTERSUN INTERNATIONAL INC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is WINTERSUN INTERNATIONAL INC located?
WINTERSUN INTERNATIONAL INC is based in ONTARIO, California at 1250 E BELMONT ST, 91761. Phone: (909) 930-1688.
What are WINTERSUN INTERNATIONAL INC's out-of-service rates?
WINTERSUN INTERNATIONAL INC's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 50.0% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.