Credentials are required for the meeting. Such credentials should be signed, on behalf of the State or international organization concerned, by a person duly authorized to do so, giving the name and position of each member of the delegation and indicating the capacity in which he or she is to serve at the meeting (Member States: chief delegate, delegate, alternate, adviser; non-Member States and international organizations: chief observer, observer). The credentials may be sent to hlsc@icao.int.