MK 21 TRANSPORT SERVICE CORP
AUTHORIZEDUSDOT
4426827
MC Number
1741269
Fleet Size
2
Total Drivers
2
Last updated: March 11, 2026
Safety overview
MK 21 TRANSPORT SERVICE CORP is a small interstate motor carrier based in MIAMI, Florida, operating 2 power units with 2 drivers. Their safety profile raises flags: 4 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 100.0% runs above the national average of 5.51%. No crashes on file. FMCSA records show 4 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 Florida is 15.2% and the average vehicle OOS rate is 30.7% across 141,370 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
4
Total
57%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is MK 21 TRANSPORT SERVICE CORP authorized to operate?
Yes. MK 21 TRANSPORT SERVICE CORP (USDOT #4426827) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is MK 21 TRANSPORT SERVICE CORP's safety record?
MK 21 TRANSPORT SERVICE CORP 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 MK 21 TRANSPORT SERVICE CORP operate?
MK 21 TRANSPORT SERVICE CORP operates 2 power units with 2 drivers on file. That makes them a small carrier.
Does MK 21 TRANSPORT SERVICE CORP transport hazardous materials?
No. MK 21 TRANSPORT SERVICE CORP does not have a hazardous materials flag in the FMCSA database.
Where is MK 21 TRANSPORT SERVICE CORP located?
MK 21 TRANSPORT SERVICE CORP is based in MIAMI, Florida at 10386 SW 3RD ST, 33174. Phone: (786) 394-7174.
What are MK 21 TRANSPORT SERVICE CORP's out-of-service rates?
MK 21 TRANSPORT SERVICE CORP's driver out-of-service rate is 100.0%, compared to the national average of 5.51%. Higher than average, which could point to driver compliance issues. Their vehicle out-of-service rate is 0.0% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.