Switzerland has been proudly welcomed as the newest member of ACTRIS ERIC at the recent General Assembly. Switzerland has been actively engaged in ACTRIS as a Permanent Observer, contributing high-quality atmospheric observations through its national facilities and scientific expertise. With its transition to a Member, Switzerland now participates fully in the governance of ACTRIS ERIC and gains full access to decision-making processes. This transition was enabled by the recent Swiss Federal Council decision to join the ACTRIS ERIC.