4. The secretariat introduced GRPE-80-02, announcing that the next GRPE session would take place on from 9 to 12 June 2020 and recalling the corresponding deadline (17 March 2020) for the submission of official documents. The Chairs and Secretaries of IWGs were invited to approach the secretariat to define the calendar of IWGs meetings for the June 2020 GRPE session. The secretariat also reminded all participants, including those in possession of long duration badges, to please register in order to appear on the list of participants.