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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

GRAY TRANSPORTATION INC

  • 322235
  • 2459 GT DRIVE
    WATERLOO, IA 50703
  • 173
  • 173
  • 182

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

6.05 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 5.57 5.66 5.53 5.92 5.97 6.05
Measure 0 0 0 0 0 0

Violation Summary

Vehicle Maint. Violations: 81

Violations Description # Violations # OOS Violations Violation Severity Weight
393.75(a)(3) Tire-flat and/or audible air leak 10 10 8
393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS 8 8 8
393.95(a) No/discharged/unsecured fire extinguisher 4 0 2
393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on 4 4 6
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 3 0 4
393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 2 0 3
393.45(b)(2) Brake hose or tubing chafing and/or kinking 2 0 4
393.45B2-B Air brake - Hose/tubing damaged or not secured 2 0 4
393.45D-B Air Brake - Audible air leak at a proper connection 2 0 4
393.45DLPC Brake Connections with Leaks - Connection to Power Unit 2 0 4
393.55D2-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle. 2 0 4
393.78A-WS Washers - Inoperative washing system. 2 0 1
393.9 Inoperable Required Lamp 2 0 2
396.5B-HWSL Hubs - Wheel seal leaking 2 2 2
392.2-SLLMF State/Local Laws - Wheel (mud) flaps missing or defective 1 0 1
392.2WC Wheel (Mud) Flaps missing or defective 1 0 1
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 1 0 3
393.11A1-L Lighting - Lamps improper color. 1 0 6
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 1 0 3
393.11UR Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 1 0 3
393.205(c) Wheel fasteners loose and/or missing 1 0 2
393.23PT All required lamps on towed vehicle inoperative due to no electrical connection 1 1 2
393.43(a) No/improper tractor protection valve 1 1 4
393.45(d) Brake connections with leaks or constrictions 1 1 4
393.45D-BAAL Air Brake - Audible air leak at other than a proper connection 1 1 4
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 1 0 4
393.47A-BCFSBD Drum Brake - Contaminated friction surface 1 0 4
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 1 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) 1 0 4
393.55D3-B Air Brake - ABS malfunction, trailers manufactured after March 1, 2001 unable to transmit ABS malfunction signal to towing vehicle. 1 0 4
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
393.75A1-TEPBM Tires - All others - Exposed ply or belt material in tread or sidewall area 1 0 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
393.75A3-ATIS Tires - All others, leaking in tread area with inflation more than 50% of the maximum inflation pressure on tire equipped with ATIS 1 0 8
393.75C-OOS Tire-other tread depth less than 1/32 of inch measured in 2 adjacent major tread grooves 3 separate locations 8 inches apart 1 1 8
393.78 Wipers - Inoperative / missing / damaged wipers 1 0 1
393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper 1 0 2
393.9A-LLPL Lighting - License plate lamp inoperative 1 0 2
393.9A-LTSI Lighting - Turn signal - Any inoperative on the rearmost vehicle. 1 1 6
393.9H Inoperable head lamps 1 0 6
393.9T Inoperable tail lamp 1 0 6
393.9TS Inoperative turn signal 1 0 6
396.3(a)(1) Inspection, repair and maintenance of parts and accessories 1 0 2
396.3(a)(1) Tire in contact with another part of the vehicle 1 1 8
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination 1 1 0
396.5B-HLOW Hubs - oil and/or Grease Leaking from hub - outer wheel 1 1 2
396.5B-HWSLOW Hubs - Wheel seal leaking - outer wheel 1 1 2

Inspection History

Vehicle Inspections: 76

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 460 76 460
TotW TiW
=
460 76
= 6.05
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.

  • 10/18/2018 (Non-Ratable Review)
  • 182
    • 103
    • 79
  • : 10

*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 06/19/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review
For U.S. DOT# 322235
Complete SMS Profile Carrier History Downloads