57. The expert from Germany, on behalf of the Co-Chairs of the IWG on ACSF introduced GRRF-80-38 presenting the status of the work done of the IWG on ACSF. The IWG is proposing five categories of ACSF independently of any automation levels definitions as well as testing procedures for the proper assessment of the safety performance of these functions. GRRF endorsed the status report and agreed to resume consideration of this agenda item at its next session.