SIOUX TANK LINE INC
AUTHORIZEDUSDOT
230708
MC Number
166199
Fleet Size
12
Total Drivers
13
Last updated: March 16, 2026
Safety overview
SIOUX TANK LINE INC is a small interstate motor carrier based in ALTON, Iowa, operating 12 power units with 13 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. They have 1 crash on file (1 with injuries). FMCSA records show 3 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 Iowa is 7.2% and the average vehicle OOS rate is 29.9% across 25,829 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
3
Total
60%
Driver %
Insurance on file
Liability (BIPD)
GREAT WEST CASUALTY CO. — eff. Apr 1, 2019
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Crash history
1
Total Crashes
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Frequently asked questions
Is SIOUX TANK LINE INC authorized to operate?
Yes. SIOUX TANK LINE INC (USDOT #230708) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SIOUX TANK LINE INC's safety record?
SIOUX TANK LINE 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 SIOUX TANK LINE INC operate?
SIOUX TANK LINE INC operates 12 power units with 13 drivers on file. That makes them a small carrier.
Does SIOUX TANK LINE INC transport hazardous materials?
Yes. SIOUX TANK LINE INC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is SIOUX TANK LINE INC located?
SIOUX TANK LINE INC is based in ALTON, Iowa at 1603 COMMERCIAL DR, 51003. Phone: (712) 756-4467.
What are SIOUX TANK LINE INC's out-of-service rates?
SIOUX TANK LINE 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 0.0% (national average: 20.72%). Below average, suggesting the fleet is well-maintained.