At its 74th session, GRE discussed proposals concerning electromagnetic compatibility and trolleybuses. Given the diversity of views, including from Belgium, China, Finland, and Russia, GRE decided to establish a task force in order to ensure that the views of national authorities and other stakeholders in this issue would be fully taken into account before proceeding with a concrete proposal. Following its 25th session, the task force was transformed into an informal working group to update electromagnetic compatibility provisions under UN R10.