Non-State actors (NSAs) that are not in official relations with WHO are invited to apply for accreditation by 31 December 2023. Accreditation may be granted by the WHO Regional Committee for Europe to international, regional and national NSAs that fulfil a set of eligibility criteria, and accreditation status is reviewed for renewal every 3 years. Accreditation includes an invitation to participate, without voting rights, in sessions of the Regional Committee. Additionally, accredited NSAs attending these sessions in person have the opportunity to submit written and oral statements through WHO/Europe. NSAs interested in becoming accredited must email the completed application form to the WHO/Europe Partnerships and Collaboration team at europar@who.int by 31 December 2023. Incomplete or unclear information could lead to rejection of the application. More information about engagement between WHO/Europe and NSAs and about the accreditation process can be found via the links or by contacting the Partnerships and Collaboration team at europar@who.int