Small gaps in driver oversight, maintenance, or compliance processes can go unnoticed until they surface during a roadside inspection or audit. By that point, the issue is already visible—and already impacting your CSA scores.
Understanding where these violations come from and how they build over time is key to staying ahead of risk.
Learn about the most common CSA violations and ways to mitigate them.
Understanding the CSA Safety Program
The Compliance, Safety, Accountability (CSA) program is a safety initiative developed by the Federal Motor Carrier Safety Administration (FMCSA) to monitor and improve the safety performance of commercial motor carriers and drivers.
The CSA program uses data collected from roadside inspections, traffic violations, and crash reports to identify safety risks and evaluate overall fleet safety performance. This information is organized into categories known as BASICs (Behavior Analysis and Safety Improvement Categories), which highlight different areas of compliance and performance.
How CSA Scores Are Determined
CSA scores are built from real-world enforcement data, primarily roadside inspections, but also including crash reports, traffic enforcement violations, and audit findings. CSA scores are calculated by the FMCSA using a combination of violation severity, frequency, and recency.
Once scores are calculated, then the FMCSA uses them to identify high-risk carriers and prioritize enforcement actions.
The Impact of CSA Scores on Fleet Operations
CSA scores reflect a carrier’s overall safety performance and level of risk. Higher scores indicate recurring violations and increase the likelihood of enforcement actions such as warning letters to audits, penalties, and in severe cases, loss of operating authority.
Because CSA data is publicly available and widely used to assess risk, maintaining strong scores is essential for compliance, protecting your reputation, and securing insurance renewal and business opportunities.
Most Common CSA Violations
Understanding how violations map to each BASIC helps fleets identify where risk is building—and where to take action.
1. Unsafe Driving BASIC
This category reflects dangerous or high-risk driving behaviors observed on the road.
Common violations include:
- Speeding
- Reckless or careless driving
- Following too closely
- Improper lane changes
- Failure to obey traffic control devices
- Use of a handheld mobile device while driving
2. Hours-of-Service (HOS) Compliance BASIC
This BASIC focuses on compliance with driving limits and required rest periods.
Common violations include:
- Exceeding allowable driving limits
- Failure to maintain accurate records of duty status
- Missing or incomplete logs
- ELD violations
- Falsification of records
3. Driver Fitness BASIC
This category evaluates whether drivers are properly qualified and authorized to operate a commercial vehicle.
Common violations include:
- No valid CDL for the vehicle being operated
- Expired or missing medical certificate
- Operating without proper endorsements
- Driving while disqualified or suspended
4. Controlled Substances and Alcohol BASIC
This BASIC addresses drug and alcohol compliance and enforcement.
Common violations include:
- Use or possession of controlled substances
- Operating under the influence of alcohol
- Refusal to submit to required testing
- Violations of drug and alcohol testing requirements
5. Vehicle Maintenance BASIC
This category reflects the condition of vehicles and whether they are properly maintained.
Common violations include:
- Brake system defects
- Tire issues (low tread, damage, inflation problems)
- Inoperable lights or reflective devices
- Suspension defects
- Fluid leaks
- Cargo securement issues
6. Hazardous Materials (HM) Compliance BASIC
This BASIC applies to carriers transporting hazardous materials and focuses on proper handling and documentation.
Common violations include:
- Improper placarding
- Missing or incorrect shipping papers
- Packaging violations
- Failure to follow hazardous materials handling requirements
You can review the most recent violation trends reported by FMCSA to understand which issues are most common and where fleets are seeing the highest risk in 2026 so far.
How to Prevent CSA Violations
Preventing CSA violations requires more than periodic checks—it requires consistent visibility into what’s happening across your drivers, vehicles, and compliance processes.
In practice, these violations tend to follow predictable patterns. As a result, fleets that monitor activity in real time and act early are better positioned to reduce risk before it impacts CSA scores.
- Stay ahead of risky driving with MVR Monitoring, which alerts you to new violations and behavior changes that could impact the Unsafe Driving BASIC.
- Keep driver qualification records accurate and up to date with a DQF Manager, ensuring licenses, medical cards, and required documents remain compliant and reducing Driver Fitness BASIC violations.
- Ensure inspections are completed and issues are reported using digital inspection tools (DVIRs), so that vehicle defects can be identified early and Vehicle Maintenance BASIC violations can be reduced.
- Track driving time and duty status with ELDs (Electronic Logging Devices) to maintain accurate records and reduce Hours-of-Service (HOS) compliance risks.
Use CSA Monitoring to identify new violations as they are reported from roadside inspections, giving you visibility into emerging risks across HOS Compliance, Vehicle Maintenance, and Crash Indicator BASICs. At the same time, reinforce compliance with targeted driver training by using real violation data to coach drivers and reduce repeat issues over time.
Take Proactive Steps Towards Fleet Safety
CSA violations aren’t random—they’re the result of patterns that can be identified and addressed early.
Fleets that connect their data and act on it consistently are the ones that stay compliant, reduce risk, and avoid costly surprises.
If you’re ready to take a more proactive approach, schedule a demo or connect with our team to learn more about MVR Monitoring, Motor Vehicle Records, DQF Manager, CSA Monitoring, Online Driver Training.
*We are not lawyers. Consult with your legal counsel to ensure your processes and procedures meet/ or exceed safety standards and compliance regulations.
