Last Updated on August 4, 2026 by J.E.B. Insurance Services, LLC
Many truckers use the term CSA score, but FMCSA does not issue one single score that defines a carrier’s safety. Instead, the Compliance, Safety, Accountability program uses the Safety Measurement System (SMS) to organize inspection, crash, and investigation data into seven Behavior Analysis and Safety Improvement Categories, or BASICs.
Understanding those categories helps motor carriers find problems early, prepare for roadside inspections, and build safer operations. It can also help an insurance agent understand the steps your company takes to control risk.
What Does “CSA Score” Mean?
Carriers often use CSA score as an informal name for the safety measures and other information in FMCSA’s SMS. The system reviews recent safety events and groups them by BASIC. FMCSA uses this data to identify carriers that may need additional attention.
SMS information can include roadside inspection violations, state-reported crashes, and investigation findings. FMCSA updates the system each month. As a result, a carrier’s profile can change as new events enter the measurement period and older events age out.
Most importantly, SMS results differ from a federal safety rating. A prioritization symbol or elevated measure does not automatically mean a carrier is unfit to operate. Review the current FMCSA Safety Measurement System to see the agency’s latest data and explanations.
CSA Score Categories for Driving Behavior
The seven BASICs cover different types of behavior and compliance. FMCSA may place a violation in one or more categories based on its classification.
1. Unsafe Driving
This BASIC covers dangerous driving behavior. Examples include speeding, reckless driving, improper lane changes, following too closely, texting, and failing to wear a seat belt. Strong hiring standards, coaching, and consistent enforcement of company rules can reduce these violations.
2. Crash Indicator
Crash Indicator uses qualifying state-reported crash data from the previous two years. A reportable crash may appear even when the motor carrier was not at fault. FMCSA hides this BASIC from the public, although the carrier and enforcement personnel can review it through authorized access.
3. Hours-of-Service Compliance
This category addresses fatigued driving and violations of hours-of-service rules. It can include false log entries, operating beyond allowed limits, and electronic logging device problems. Dispatch practices should give drivers enough time to comply without feeling pressured to violate the rules.
CSA Score Categories for Equipment and Driver Compliance
4. Vehicle Maintenance
Vehicle Maintenance includes defects such as faulty brakes, damaged tires, broken lights, and poor load securement. Carriers can lower risk through documented preventive maintenance and prompt repairs. A consistent pre-trip maintenance checklist also helps drivers spot defects before an inspector does.
5. Controlled Substances and Alcohol
This BASIC covers the possession or use of prohibited drugs and alcohol while operating a commercial motor vehicle. It also includes certain testing and reporting violations. Clear policies, proper testing procedures, and supervisor training support compliance.
6. Hazardous Materials Compliance
Hazardous Materials Compliance addresses the safe handling and transport of regulated materials. Violations may involve placards, shipping papers, packaging, loading, securement, or leaks. Like Crash Indicator, this BASIC is not available to the general public.
7. Driver Fitness
Driver Fitness focuses on whether a driver is qualified to operate a commercial vehicle. Missing or invalid commercial driver’s licenses, expired medical certificates, and incomplete qualification records can create violations. Carriers should verify credentials before dispatch and monitor expiration dates throughout employment.
Which CSA BASICs Can the Public See?
The public can generally see five BASICs in a property carrier’s SMS profile: Unsafe Driving, Hours-of-Service Compliance, Vehicle Maintenance, Controlled Substances and Alcohol, and Driver Fitness. FMCSA gives only the carrier and authorized enforcement users access to Crash Indicator and Hazardous Materials Compliance.
Nonpublic data still matters. FMCSA can use it when prioritizing a carrier for intervention. Carriers should sign in to review all available information instead of relying only on the public profile.
How FMCSA Uses CSA Score Data
FMCSA applies severity weights, time weights, and exposure measures when calculating SMS results. More serious violations generally carry greater weight, while recent events affect the measurement more than older ones. The agency’s current SMS methodology explains the calculation and intervention process in detail.
A high measure in one BASIC can indicate a pattern that deserves attention. However, carriers should read the result in context. Fleet size, inspection activity, the number and severity of violations, and recent operating history can all influence what appears in SMS.
How to Improve CSA Score Results
Start by reviewing your company’s SMS profile every month. Compare inspection reports with driver files, maintenance records, logs, and crash documentation. If information appears incomplete or incorrect, submit supporting records through FMCSA DataQs.
Next, identify repeat violations instead of treating each event as isolated. Frequent lighting violations may point to weak inspection routines. Hours-of-service problems may reveal unrealistic dispatch schedules. Driver Fitness issues often signal gaps in onboarding or document tracking.
Correct the process that allowed the violation, then document the change. Use driver coaching, written maintenance procedures, periodic file audits, and management follow-up to prevent repeat problems. Our guide to creating a semi-truck maintenance plan can help you build a more consistent routine.
Can a CSA Score Affect Truck Insurance?
Commercial truck insurers do not use one universal formula for a CSA score. Still, underwriters may review inspection history, violations, crashes, driver records, maintenance controls, and the way a company responds to safety problems. A pattern of severe or repeated violations can make an account harder to place.
Clean records alone do not guarantee a lower premium. Equipment, radius, cargo, experience, loss history, and coverage limits also matter. Even so, strong safety management helps an owner-operator or fleet present a clearer story during underwriting.
Review Your CSA Score and Insurance Together
The seven FMCSA BASICs provide a practical way to organize safety risks. Review your data regularly, correct errors, address repeated violations, and keep records that show what changed. Those habits support safer operations and can make insurance conversations more productive.
J.E.B. Insurance Services helps owner-operators and motor carriers evaluate commercial truck coverage in the states we serve. If you want to discuss how your safety history may affect your options, request a free commercial truck insurance quote.
