Z-SONS TRANSPORTATION LLC
AUTHORIZEDUSDOT
3211234
MC Number
1002852
Fleet Size
2
Total Drivers
2
Last updated: March 16, 2026
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Safety overview
Z-SONS TRANSPORTATION LLC is a small interstate motor carrier based in DUNBALK, Maryland, operating 2 power units with 2 drivers. 1 of their 5 BASIC scores sits above the 75th percentile intervention threshold. The rest fall within acceptable ranges. They have 1 crash on file. FMCSA records show 18 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 Maryland is 13.2% and the average vehicle OOS rate is 25.4% across 42,394 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
18
Total
62%
Driver %
Insurance on file
Liability (BIPD)
AGENCY INSURANCE COMPANY OF MARYLAND, INC — eff. Feb 23, 2026
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Crash history
1
Total Crashes
Similar carriers in Maryland
Other carriers in the same state with a similar fleet size.
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Frequently asked questions
Is Z-SONS TRANSPORTATION LLC authorized to operate?
Yes. Z-SONS TRANSPORTATION LLC (USDOT #3211234) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is Z-SONS TRANSPORTATION LLC's safety record?
Z-SONS TRANSPORTATION LLC 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 Z-SONS TRANSPORTATION LLC operate?
Z-SONS TRANSPORTATION LLC operates 2 power units with 2 drivers on file. That makes them a small carrier.
Does Z-SONS TRANSPORTATION LLC transport hazardous materials?
No. Z-SONS TRANSPORTATION LLC does not have a hazardous materials flag in the FMCSA database.
Where is Z-SONS TRANSPORTATION LLC located?
Z-SONS TRANSPORTATION LLC is based in DUNBALK, Maryland at 8148 KAVANAGH RD, 21222. Phone: (240) 449-0580.
What are Z-SONS TRANSPORTATION LLC's out-of-service rates?
Z-SONS TRANSPORTATION LLC's driver out-of-service rate is 5.6%, compared to the national average of 5.51%. Their vehicle out-of-service rate is 9.1% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.