ROAD KING TRUCK LINES INC
AUTHORIZEDUSDOT
3439519
MC Number
1117299
Fleet Size
25
Total Drivers
28
Last updated: March 16, 2026
Safety overview
ROAD KING TRUCK LINES INC is a mid-size interstate motor carrier based in TRACY, California, operating 25 power units with 28 drivers. Their safety profile raises flags: 4 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. They have 5 crashes on file (1 with injuries). FMCSA records show 60 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 22.4% across 312,857 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- 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
60
Total
71%
Driver %
Crash history
5
Total Crashes
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Frequently asked questions
Is ROAD KING TRUCK LINES INC authorized to operate?
Yes. ROAD KING TRUCK LINES INC (USDOT #3439519) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is ROAD KING TRUCK LINES INC's safety record?
ROAD KING TRUCK LINES INC has 4 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 ROAD KING TRUCK LINES INC operate?
ROAD KING TRUCK LINES INC operates 25 power units with 28 drivers on file. That puts them in the mid-size range.
Does ROAD KING TRUCK LINES INC transport hazardous materials?
No. ROAD KING TRUCK LINES INC does not have a hazardous materials flag in the FMCSA database.
Where is ROAD KING TRUCK LINES INC located?
ROAD KING TRUCK LINES INC is based in TRACY, California at 474 W GRANT LINE RD #200, 95376. Phone: (209) 510-0455.
What are ROAD KING TRUCK LINES INC's out-of-service rates?
ROAD KING TRUCK LINES INC's driver out-of-service rate is 6.7%, compared to the national average of 5.51%. Their vehicle out-of-service rate is 16.0% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.