SLAY TRANSPORTATION CO INC
AUTHORIZEDUSDOT
77890
MC Number
N/A
Fleet Size
494
Total Drivers
420
Last updated: March 16, 2026
Safety overview
SLAY TRANSPORTATION CO INC is a large interstate motor carrier based in EAST SAINT LOUIS, Illinois, operating 494 power units with 420 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 1.1% comes in under the 5.51% national average. They have 25 crashes on file (7 with injuries). FMCSA records show 947 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 Illinois is 9.1% and the average vehicle OOS rate is 27.0% across 49,579 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- 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
947
Total
56%
Driver %
Insurance on file
Liability (BIPD)
ENDURANCE AMERICAN SPECIALTY INSURANCE CO — eff. Jul 1, 2025
Cargo
LEXINGTON INSURANCE COMPANY — eff. Feb 21, 2011
Surety Bond
TRAVELERS CASUALTY & SURETY CO. OF AMERICA — eff. Oct 1, 2013
Trust Fund
Not on file
Crash history
25
Total Crashes
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Frequently asked questions
Is SLAY TRANSPORTATION CO INC authorized to operate?
Yes. SLAY TRANSPORTATION CO INC (USDOT #77890) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SLAY TRANSPORTATION CO INC's safety record?
SLAY TRANSPORTATION CO 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 SLAY TRANSPORTATION CO INC operate?
SLAY TRANSPORTATION CO INC operates 494 power units with 420 drivers on file. That puts them in the large carrier category by FMCSA standards.
Does SLAY TRANSPORTATION CO INC transport hazardous materials?
Yes. SLAY TRANSPORTATION CO INC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is SLAY TRANSPORTATION CO INC located?
SLAY TRANSPORTATION CO INC is based in EAST SAINT LOUIS, Illinois at 1120 NORTH FIRST STREET, 62201. Phone: (314) 647-7529.
What are SLAY TRANSPORTATION CO INC's out-of-service rates?
SLAY TRANSPORTATION CO INC's driver out-of-service rate is 1.1%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 9.7% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.