Which resource can carriers use to monitor their safety performance?

The Safety Measurement System (SMS) under the CSA program is the appropriate resource for carriers to monitor their safety performance. This system uses data from various sources, including crash reports, inspection results, and violation records, to calculate a carrier's safety performance in relation to specific safety categories. Through the SMS, carriers can identify trends, pinpoint areas of improvement, and understand how they compare to their peers within the industry. This helps them to implement necessary safety measures and improve their overall compliance with federal regulations, thereby enhancing their safety and operational efficiency.

Other options may not specifically address the ongoing monitoring of a carrier's safety performance. While the Safety Monitoring System and the Compliance Evaluation Program offer valuable information regarding safety compliance, they do not provide the same level of detailed performance metrics as SMS. The Commercial Violation Tracker might track violations but doesn't focus specifically on a carrier's safety performance in the same comprehensive manner as the SMS. Hence, SMS is the key resource for carriers seeking to monitor and enhance their safety performance effectively.