Impact Data Recorders (IDRs)
From 1st January 2027, Impact Data Recorders will be mandatory for competitors in Race, Stage Rally and Rallycross.
The FIA Impact Data Recorder, or IDR, is a small, lightweight device fitted inside your competition vehicle. It automatically records data when a high-G impact occurs, helping Motorsport UK better understand incidents and support evidence-based improvements to safety across the sport.
For more information, please see below and here.