The EV/HFCV Retrofit Systems IWG held three meetings since the last GRVA session and has compiled requirements for Electrical Safety (UN R100), Braking (UN R13/R13H), Cybersecurity (UN R155), and EMC (UN R10) with participation of respective GRs experts. Regulation drafting has started. Next activities include continuation of discussion on requirements, addressing net power and electric consumption determination, family and parent definition, and provisions for PTI, with regulation draft for EV retrofit to be delivered as informal document to the next GRPE session in October.