According to FMCSA records, Quest Liner (DOT# 1609038) in Dubuque, Iowa has 713 inspections on record with 571 violations and a 11.9% vehicle out-of-service rate and 20 crashes, including 2 fatal. Safety grade: C. Active common authority.
713Inspections
11.9%Vehicle OOS Rate
20Crashes
344Power Units
Out-of-Service Rates vs. National Average
An out-of-service (OOS) violation means a vehicle or driver was found unsafe to operate during a roadside inspection and was prohibited from continuing until the issue was corrected.
Vehicle OOS Rate11.9%
Carrier: 11.9% (85 of 713)National: 23.2%
Driver OOS Rate0.4%
Carrier: 0.4% (3 of 713)National: 6.4%
47%OOS rate better than 47% of carriers in Iowa
27%crash rate better than 27% of carriers in Iowa
Violation Categories · 571 total violations
FMCSA groups violations into Behavioral Analysis and Safety Improvement Categories (BASICs). Each violation found during a roadside inspection is classified into a category that reflects the type of safety risk.
571total violations across 713 inspections
89violations resulted in out-of-service orders (16%)
Vehicle Maintenance
391
Unsafe Driving
114
Hours of Service
25
Driver Fitness
2
Hazardous Materials
28
Other
11
Inspection History · 100 records
FMCSA inspections range from Level 1 (full vehicle and driver examination) to Level 6 (enhanced motorcoach inspection). Level 1 is the most thorough; Levels 2 and 3 are walk-around and driver-only checks.
FMCSA operating authority permits interstate for-hire transportation. Carriers must maintain minimum insurance coverage levels to keep authority active. BIPD (bodily injury and property damage) insurance is required for all for-hire carriers.
MC/MX NumberMC595010
Common AuthorityActive
Contract AuthorityActive
Broker AuthorityActive
BIPD InsuranceNot On File
Cargo InsuranceNot On File
Surety BondOn File
Type
Insurer
Coverage
Effective
BIPD/Excess
Ace American Insurance Company
$4,000
12/01/2025
BIPD/Excess
Ace American Insurance Company
$1,000
12/01/2025
BIPD/Primary
Self-insured
$1,000
07/01/2024
SURETY
Travelers Casualty & Surety Co. of America
N/A
09/22/2024
Fleet Profile
Power units include trucks, tractors, and other commercial motor vehicles registered to the carrier. Driver count reflects the total number of drivers reported on the carrier's MCS-150 filing.