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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

WARREN TRANSPORT INC

  • 1896
  • 3124 TITAN TRAIL
    WATERLOO, IA 50701
  • 343
  • 340
  • 492

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

4.21 How is the measure calculated?

Safety Event Group: 101-500 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 4.15 4.07 4.03 4.09 4.14 4.21
Measure 0 0 0 0 0 0

Violation Summary

Vehicle Maint. Violations: 194

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 29 29 8
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 11 0 4
393.9 Inoperable Required Lamp 8 3 2
393.45D-B Air Brake - Audible air leak at a proper connection 6 0 4
393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear 6 0 4
393.75(a)(3) Tire-flat and/or audible air leak 6 6 8
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination 6 6 0
393.45(b)(2) Brake hose or tubing chafing and/or kinking 5 0 4
393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on 5 5 6
393.78 Wipers - Inoperative / missing / damaged wipers 4 0 1
393.95(a) No/discharged/unsecured fire extinguisher 4 0 2
393.207(b) Adjustable axle locking pins missing or not engaged 3 3 7
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear 3 0 4
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 3 0 4
393.83(g) Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment 3 0 1
396.3(a)(1) Inspection, repair and maintenance of parts and accessories 3 0 2
392.9A2-C Cargo - Vehicle components or dunnage not secured 2 2 1
393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV 2 2 7
393.104B-C Cargo - Damaged securement devices/tiedowns 2 0 1
393.110B3-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet 2 2 3
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 2 0 3
393.45(d) Brake connections with leaks or constrictions 2 0 4
393.45B2-B Air brake - Hose/tubing damaged or not secured 2 0 4
393.45B2-BHTD Air Brake - Hose/tubing damage into the outer reinforcement ply. 2 2 4
393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle 2 0 4
393.45D-BAAL Air Brake - Audible air leak at other than a proper connection 2 2 4
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 2 0 4
393.55(d)(1) CMV not equipped with ABS malfunction circuit or signal (Truck-Tractor mfg on/after 3/1/1997; Straight Truck mfg on/after 3/1/1998) 2 0 4
393.60(c) Windshield - Damaged or Discolored 2 0 1
393.9(a) Inoperative Brake Lamps 2 2 6
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured 2 0 2
393.9A-HLLH Lighting - Headlamp(s) fail to operate on low and high beam 2 0 6
393.9A-LSLI Lighting - Stop lamps - Any inoperative. 2 0 6
393.9A-LTSI Lighting - Turn signal - Any inoperative on the rearmost vehicle. 2 2 6
393.9TS Inoperative turn signal 2 1 6
396.3A1-BALAC Brake - Audible air leak from a brake chamber 2 0 4
396.3A1B Brakes (general) Explain: 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
392.2WC Wheel (Mud) Flaps missing or defective 1 0 1
393.104(b) Damaged securement system/tiedowns 1 0 1
393.104F3-C Cargo - Loose or unfastened tiedown 1 0 3
393.106B-C Cargo - Not immobilized or secured 1 0 3
393.106C1-C Cargo - Cargo not immobilized or secured against rolling 1 1 3
393.106D-C Cargo - Insufficient aggregate working load limit for cargo transported 1 1 3
393.11 No or defective lighting devices or reflective material as required 1 1 3
393.110(b) Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo 1 1 3
393.110B1-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and 1,100 lbs. or less 1 1 3
393.118D-CDL Dressed Lumber/Similar Building Products - Improper Securement of bundles transported using more than one tier. 1 1 3
393.11A1-LTSM Lighting - Turn signal - Any missing on the rearmost vehicle. 1 1 6
393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 1 0 3
393.126(c)(2) All corners of loaded intermodal container not secured when transported on vehicle other than container chassis vehicle 1 1 7
393.130B-CHVE Heavy Vehicles/Equipment - Improper securement of accessory equipment or articulated vehicles 1 1 7
393.130C-CHVE Heavy Vehicles/Equipment - Improper securement of heavy vehicles, equipment or machinery with crawler tracks or wheels 1 1 7
393.201(a) Frame cracked / loose / sagging / broken 1 0 2
393.203(e) Cab front bumper missing/unsecured/protrude 1 0 2
393.209(d) Steering system components worn, welded, or missing 1 1 6
393.43A-TPV Air Brake - Inoperable or missing tractor protection valve 1 1 4
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 1 0 4
393.45B2PC Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit 1 0 4
393.45DLPC Brake Connections with Leaks - Connection to Power Unit 1 0 4
393.45DLUV Brake Connections with Leaks Under Vehicle 1 0 4
393.47(b) Mis-matched brake chambers on same axle 1 1 4
393.48(a) Inoperative/defective brakes 1 0 4
393.48A-BLMACBD Drum Brake - Loose chamber/spider/camshaft support bracket 1 0 4
393.51 No or defective brake warning device or pressure gauge 1 1 4
393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault. 1 0 4
393.60E Windshield - Obstructed 1 0 1
393.75(a) Flat tire or fabric exposed 1 1 8
393.75(c) Tire-other tread depth less than 2/32 of inch measured in a major tread groove 1 0 8
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 1 0 8
393.79 Defroster/Defogger - Inoperative or defective 1 0 1
393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. 1 0 2
393.9A-LBL Lighting - Backup lamp inoperative 1 0 6
393.9A-LCL Lighting - Clearance lamp(s) inoperative 1 0 2
393.9A-LHWS Lighting - Hazard warning signal(s) inoperative 1 0 6
393.9A-LRLI Lighting - Tail lamp - Any inoperative 1 0 6
393.9A-LSML Lighting - Side marker lamp(s) inoperative 1 0 2
393.9H Inoperable head lamps 1 0 6
396.17(c) Operating a CMV without proof of a periodic inspection 1 0 4
396.3A1-ALBV Air Brake - Any leak from a brake valve 1 0 4
396.3A1-BALR Air Brake - Fails air loss rate test 1 1 4
396.5B-HLIW Hubs - Oil and/or Grease Leaking from hub - inner wheel 1 1 2
396.5B-L Lubrication - Oil or grease leak 1 0 3

Inspection History

Vehicle Inspections: 244

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 1,022 418 1,763
TotW TiW
=
1,763 418
= 4.21
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.

  • 4/14/2016 (Non-Ratable Review)
  • 492
    • 310
    • 182
  • : 26

*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 06/14/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review
For U.S. DOT# 1896
Complete SMS Profile Carrier History Downloads