The CSA Score is calculated using data from various sources, including inspections, crash reports, and enforcement data. The score ranges from 0 to 100, with higher scores indicating a higher level of safety risk.
ISS Score
The ISS Score, on the other hand, measures a driver's compliance with federal safety regulations and on-road performance. The score is calculated using data from driver inspections, including violations, and the Out-of-Service (OOS) rate. The OOS rate refers to the percentage of inspections that result in a driver being taken out of service for safety violations. The ISS score ranges from 0 to 100, with higher scores indicating a higher level of safety risk.