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FMCSA - Federal Motor Carrier Safety Adminstration

CSA - Compliance, Safety, Accountability

Working Together for Safety.


SMS - Safety Measurement System SMS - Safety Measurement System

STS EXPRESS INC

  • 3591417
  • 722 S 13TH AVE
    CLINTON, IA 52732
  • 25
  • 25
  • 120

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

Vehicle Maintenance

More Info

On-Road Performance

3.59 How is the measure calculated?

Safety Event Group: 21-100 relevant vehicle inspections

Investigation Results

No Acute/Critical Violations Discovered

Expand Graph

Carrier Measure Over Time

  • Trends

This graph displays a carrier’s measure based on 24 months of on-road performance. Zero indicates the best performance. To see how the measure is calculated click here. To see how the measure relates to percentile click here. Expand for more information.

  • 8
  • 6
  • 4
  • 2
  • 0
  • -2
  • Dec 26
  • Jan 30
  • Feb 27
  • Mar 27
  • Apr 24
  • May 15
  • 2025
  • 2026
  • 2026
  • 2026
  • 2026
  • 2026
  Dec 26 2025 Jan 30 2026 Feb 27 2026 Mar 27 2026 Apr 24 2026 May 15 2026
Measure 2.84 3.38 3.28 3.36 3.59 3.59
Measure 0 0 0 0 0 0

Violation Summary

Vehicle Maint. Violations: 47

Violations Description # Violations # OOS Violations Violation Severity Weight
393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS 4 4 8
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 2 0 8
393.78A-WS Washers - Inoperative washing system. 2 0 1
393.9 Inoperable Required Lamp 2 0 2
393.9TS Inoperative turn signal 2 0 6
396.17C-PI Operating a CMV without documentation of a periodic inspection 2 0 4
392.2-SLLMF State/Local Laws - Wheel (mud) flaps missing or defective 1 0 1
392.2SLSNC State/Local Laws - CMV snow chains required 1 0 2
393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV 1 1 7
393.104F3-C Cargo - Loose or unfastened tiedown 1 0 3
393.110B2I-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1,100 lbs 1 1 3
393.110B3-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet 1 1 3
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 1 0 3
393.19 Inoperative/Defective Hazard Warning Lamp 1 0 6
393.201A-FRCLS Frame - Cracked/loose/sagging/broken frame or chassis 1 0 2
393.205A-WRBH Wheel/Rim - Cracks between two holes 1 1 2
393.207(f) Air suspension pressure loss 1 1 7
393.207F-SDAS Suspension - Deflated air suspension 1 1 7
393.45B2-BHTD Air Brake - Hose/tubing damage into the outer reinforcement ply. 1 1 4
393.45DLPC Brake Connections with Leaks - Connection to Power Unit 1 0 4
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 1 0 4
393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear 1 0 4
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates a fault. 1 0 4
393.60E Windshield - Obstructed 1 0 1
393.75(c) Tire-other tread depth less than 2/32 of inch measured in a major tread groove 1 0 8
393.75A1-TAORETA Tires - All others, has more than one ply exposed in the tread area exceeding 2 square inches. 1 1 8
393.75A1-TEPBM Tires - All others - Exposed ply or belt material in tread or sidewall area 1 0 8
393.75A1-TFSMF Tires - Front, sidewall is cut/worn/damaged exposing ply cord 1 1 8
393.75A2-TAOTLM Tires - All others, 75% of the tread width is loose/missing in excess of 12 inches of circumference 1 1 8
393.75C-TAOTD-LT1/32 Tires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves 1 1 8
393.86A2-RIG Rear Impact Guards - Trailers and semitrailers manufactured on or after January 26, 1998 inadequate width. 1 0 2
393.9(a) Inoperative Brake Lamps 1 0 6
393.95(a) No/discharged/unsecured fire extinguisher 1 0 2
393.9A-LCL Lighting - Clearance lamp(s) inoperative 1 0 2
393.9A-LTSIR Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit 1 0 6
396.17(c) Operating a CMV without proof of a periodic inspection 1 0 4
396.3A1-BALAC Brake - Audible air leak from a brake chamber 1 0 4
396.3A1-BARS Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch 1 0 4
396.5B-L Lubrication - Oil or grease leak 1 0 3

Inspection History

Vehicle Inspections: 78

Please select to view your Inspection History. You can also sort your data by Date, Report Number, Vehicle Type, etc.

(or)
Report Vehicle Measure = Sum of the Total Weight (TotW) Sum of the Time Weight (TiW)
Inspection Date Number State Plate Number Plate State Type Severity Weight
(SW)
Time Weight
(TiW)
Total Weight
(TotW)
Sum of measure weights Sum of measure weights 247 144 517
TotW TiW
=
517 144
= 3.59
More Info

*** The sum of all violation severity weights (violation weight + out-of-service) for this inspection has been capped at 30.

Investigation Results

Vehicle Maint. Acute/Critical Violations: 0

This carrier has no Vehicle Maintenance Acute/Critical Violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

  • 120
    • 82
    • 38
  • : 2

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Inspection Selection System

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

Enforcement Cases

(Six years as of 06/07/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review
For U.S. DOT# 3591417
Complete SMS Profile Carrier History Downloads