QUEST LINER INC
QUEST LINER
- 1609038
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501 BELL ST
DUBUQUE, IA 52001 - 344
- 239
- 491
Safety Rating & OOS Rates AND Licensing and Insurance
As part of FMCSA’s IT modernization strategy, we are merging our data platforms to make it easier for you to find the information you need. For safety rating, Out-of-Service (OOS) rates, and licensing and insurance information, visit Motus, the FMCSA Registration and Management system.
BASIC Status
(Public Property Carrier View)
Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending May 15, 2026
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Unsafe Driving
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Not Public Crash Indicator
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Hours-of-Service Compliance
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Vehicle Maintenance
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Controlled Substances and Alcohol
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Not Public Hazardous Materials Compliance
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Driver Fitness
Select a BASIC icon above to get details, or view your Complete SMS Profile.
Vehicle Maintenance
On-Road Performance
2.78
Safety Event Group: 101-500 relevant vehicle inspections
Investigation Results
No Acute/Critical Violations Discovered
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.
- 4
- 3
- 2
- 1
- 0
- -1
- 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 | 2.62 | 2.56 | 2.43 | 2.51 | 2.52 | 2.78 |
| Measure | 0 | 0 | 0 | 0 | 0 | 0 |
Violation Summary
Vehicle Maint. Violations: 271
| Violations | Description | # Violations | # OOS Violations | Violation Severity Weight |
|---|---|---|---|---|
| 393.9 | Inoperable Required Lamp | 15 | 2 | 2 |
| 393.45(b)(2) | Brake hose or tubing chafing and/or kinking | 13 | 5 | 4 |
| 393.45B2-B-AIR | Air Brake - Hose/tubing damaged or not secured | 10 | 1 | 4 |
| 393.45D-B | Air Brake - Audible air leak at a proper connection | 10 | 0 | 4 |
| 393.47(e) | Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt | 9 | 0 | 4 |
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories | 8 | 1 | 2 |
| 393.11 | No or defective lighting devices or reflective material as required | 7 | 0 | 3 |
| 393.11TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | 7 | 0 | 3 |
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | 7 | 2 | 4 |
| 393.55E-B | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 | 7 | 0 | 4 |
| 393.95(a) | No/discharged/unsecured fire extinguisher | 7 | 0 | 2 |
| 393.45B2-BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | 6 | 5 | 4 |
| 393.45B2PC | Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit | 6 | 1 | 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 |
| 393.55(e) | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | 6 | 0 | 4 |
| 393.60(c) | Windshield - Damaged or Discolored | 6 | 0 | 1 |
| 393.75A3-TAOL | Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | 6 | 6 | 8 |
| 393.45(d) | Brake connections with leaks or constrictions | 5 | 1 | 4 |
| 393.45DLUV | Brake Connections with Leaks Under Vehicle | 5 | 1 | 4 |
| 393.78 | Wipers - Inoperative / missing / damaged wipers | 5 | 0 | 1 |
| 393.9A-LSLIWR | Lighting - Stop lamps - Both inoperative when required to be on | 5 | 5 | 6 |
| 396.5(b) | Oil and/or grease leak | 5 | 0 | 3 |
| 396.17(c) | Operating a CMV without proof of a periodic inspection | 4 | 0 | 4 |
| 396.3(a)1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | 4 | 4 | 0 |
| 393.11TU | Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 | 3 | 0 | 3 |
| 393.45DLPC | Brake Connections with Leaks - Connection to Power Unit | 3 | 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 | 3 | 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) | 3 | 0 | 4 |
| 393.60(d) | Windshield / Windows - Tinting permits less than 70% of light transmittance | 3 | 0 | 1 |
| 393.95A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | 3 | 0 | 2 |
| 393.9A-LTSIR | Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit | 3 | 0 | 6 |
| 393.9H | Inoperable head lamps | 3 | 0 | 6 |
| 393.9TS | Inoperative turn signal | 3 | 0 | 6 |
| 396.5B-L | Lubrication - Oil or grease leak | 3 | 0 | 3 |
| 393.11A1-CSURR | Conspicuity Systems - Truck tractor, upper rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 | 2 | 0 | 3 |
| 393.45 | Brake tubing and hose adequacy | 2 | 0 | 4 |
| 393.45B2-B | Air brake - Hose/tubing damaged or not secured | 2 | 0 | 4 |
| 393.48A-BIBD | Drum Brake - Inoperative other than a steering axle | 2 | 0 | 4 |
| 393.55D1-B | Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 1997 and each single unit CMV on or after 1998. | 2 | 0 | 4 |
| 393.75(a)(3) | Tire-flat and/or audible air leak | 2 | 2 | 8 |
| 393.75A3-TAOLTIS | Tires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS | 2 | 2 | 8 |
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | 2 | 0 | 2 |
| 393.9A-LFTSI | Lighting - Front - Turn signal - inoperative | 2 | 0 | 6 |
| 393.9A-LRLI | Lighting - Tail lamp - Any inoperative | 2 | 0 | 6 |
| 396.3A1-BALAC | Brake - Audible air leak from a brake chamber | 2 | 0 | 4 |
| 396.5B-HWSL | Hubs - Wheel seal leaking | 2 | 1 | 2 |
| 396.5B-HWSLOW | Hubs - Wheel seal leaking - outer wheel | 2 | 1 | 2 |
| 392.2WC | Wheel (Mud) Flaps missing or defective | 1 | 0 | 1 |
| 392.8 | Failing to inspect/use emergency equipment | 1 | 0 | 2 |
| 392.9 | Driver may not operate a CMV without proper load securement | 1 | 1 | 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-LHLM | Lighting - Headlamp(s) - Any missing | 1 | 0 | 6 |
| 393.203(c) | Hood not securely fastened | 1 | 0 | 2 |
| 393.205(a) | Wheel/rim cracked or broken | 1 | 1 | 2 |
| 393.205A-WRDC | Wheel/Rim - Disc wheel cracked more than 3 inches | 1 | 1 | 2 |
| 393.207(a) | Axle positioning parts defective/missing | 1 | 1 | 7 |
| 393.207F-SASMD | Suspension - Air spring/bag is missing or is detached at the top or bottom. | 1 | 1 | 7 |
| 393.207F-SDAS | Suspension - Deflated air suspension | 1 | 1 | 7 |
| 393.209(d) | Steering system components worn, welded, or missing | 1 | 1 | 6 |
| 393.23-LEU | Lighting - All electrical systems on towed vehicle(s) inoperative due to no electrical connection (e.g., unplugged or loose pigtail) | 1 | 1 | 2 |
| 393.23PT | All required lamps on towed vehicle inoperative due to no electrical connection | 1 | 1 | 2 |
| 393.43A-TPV | Air Brake - Inoperable or missing tractor protection valve | 1 | 1 | 4 |
| 393.45PC | Brake Tubing and Hose Adequacy - Connections to Power Unit | 1 | 0 | 4 |
| 393.47(a) | Inadequate brakes for safe stopping - Brake Lining condition | 1 | 0 | 4 |
| 393.47A-BCFSBD-SA | Drum Brake - Contaminated friction surface on a steering axle | 1 | 1 | 4 |
| 393.47A-BCLMBD | Drum Brake - Cracked/loose/missing lining/pad | 1 | 0 | 4 |
| 393.47D2-BLTBD | Drum Brake - Inadequate lining/pad thickness | 1 | 0 | 4 |
| 393.48A-BMBCAD | Air Disc Brake - Missing/broken component(s) | 1 | 0 | 4 |
| 393.48A-BMBCBD | Drum Brake - Missing/broken component(s) | 1 | 0 | 4 |
| 393.55(c)(1) | Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system | 1 | 0 | 4 |
| 393.55(c)(2) | CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. | 1 | 0 | 4 |
| 393.55(d)(2) | CMV manufactured on/after 3/1/2001 not equipped with ABS malfunction circuit / lamp from towed vehicle in cab | 1 | 0 | 4 |
| 393.55(d)(3) | No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001 | 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 |
| 393.75(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 |
| 393.78A-WS | Washers - Inoperative washing system. | 1 | 0 | 1 |
| 393.81 | Horn inoperative | 1 | 0 | 3 |
| 393.9(a) | Inoperative Brake Lamps | 1 | 1 | 6 |
| 393.95(f) | Emergency Equipment - Stopped vehicle warning devices missing or improper | 1 | 0 | 2 |
| 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-LIL | Lighting - Identification lamp(s) inoperative | 1 | 0 | 2 |
| 393.9A-LSLI | Lighting - Stop lamps - Any inoperative. | 1 | 0 | 6 |
| 393.9A-LSML | Lighting - Side marker lamp(s) inoperative | 1 | 0 | 2 |
| 393.9A-LTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | 1 | 1 | 6 |
| 393.9T | Inoperable tail lamp | 1 | 0 | 6 |
| 396.3(a)(1) | Tire in contact with another part of the vehicle | 1 | 1 | 8 |
| 396.3(a)(1) | Hubs - Hub cap missing or broken | 1 | 1 | 2 |
| 396.3A1-BARS | Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch | 1 | 1 | 4 |
| 396.5B-HLIW | Hubs - Oil and/or Grease Leaking from hub - inner wheel | 1 | 0 | 2 |
| 399.211-CBP | Cab-Over-Engine truck or tractor only - Defective cab access steps, handholds or deck plates | 1 | 0 | 2 |
Inspection History
Vehicle Inspections: 408
Please select to view your Inspection History. You can also sort your data by Date, Report Number, Vehicle Type, etc.
| 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 | 1,113 | 732 | 2,039 | ||||||
*** 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.
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491
- 295
- 196
- : 22
*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 DetailsCarrier Registration
Carrier Registration Details Subject to Hazmat Threshold Update Registration InfoInspection Selection System
As part of FMCSA’s IT modernization strategy, we are merging our data platforms to make it easier for you to find the information you need. For safety rating, Out-of-Service (OOS) rates, and licensing and insurance information, visit Motus, the FMCSA Registration and Management system.
Enforcement Cases
(Six years as of 06/04/2026 updated monthly from FMCSA )
No penalties found
Tools/Resources
SMS Methodology How to Improve Request a Data ReviewFor U.S. DOT# 1609038
Complete SMS Profile Carrier History DownloadsUse of SMS Data/Information
FAST Act of 2015:
Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.
Safety Measurement System:
The data in the Safety Measurement System (SMS) is performance data used by the
Agency and Enforcement Community. A
symbol, based on that data, indicates that FMCSA may prioritize a motor carrier
for further monitoring.
The
symbol is not intended to imply any federal safety rating of the carrier pursuant
to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety
condition simply based on the data displayed in this system. Unless a motor carrier
in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part
385, or has otherwise been ordered to discontinue operations by the FMCSA, it is
authorized to operate on the nation's roadways.
Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.