the rules and procedures for the declaration by aircraft operators referred to in point (a) of Article 30(1), and for the situations in which such declarations are to be required;
na rialacha agus na nósanna imeachta maidir le dearbhuithe ó oibreoirí aerárthaí dá dtagraítear i bpointe (a) d'Airteagal 30(1), agus na cásanna ina bhfuil gá leis na dearbhuithe sin;