The EV/HFCV Retrofit Systems IWG has held nine meetings since creation and focused on EV retrofit requirements. The group compiled requirements for Electrical Safety (UN R100), Braking (UN R13/R13H), Cybersecurity (UN R155), and EMC (UN R10) with participation from respective GRs experts. Next activities include continuation of discussions on electrical safety, braking, cybersecurity, and EMC; net power and electric consumption determination; Family/Parent definition; and PTI provisions. A regulation draft for EV retrofit will be delivered as an informal document to the next GRPE session in October, with adoption expected in the first half of 2027.