20 
PP-06	1	The members of the Radio Regulations Board shall take up their duties on the dates determined by the Plenipotentiary Conference at the time of their election. They shall remain in office until dates determined by the following plenipotentiary conference, and shall be eligible for re-election once only. Reelection shall mean that it is possible for only a second term, regardless of whether it is consecutive or not.	
21
PP-02	2	If, in the interval between two plenipotentiary conferences, a member of the Board resigns or is no longer in a position to perform his duties, the Secretary-General, in consultation with the Director of the Radiocommunication Bureau, shall invite the Member States of the region concerned to propose candidates for the election of a replacement at the next session of the Council. However, if the vacancy occurs more than 90 days before a session of the Council or after the session of the Council preceding the next plenipotentiary conference, the Member State concerned shall designate, as soon as possible and within 90 days, another national as a replacement who will remain in office until the new member elected by the Council takes office or until the new members of the Board elected by the next plenipotentiary conference take office, as appropriate. The replacement shall be eligible for election by the Council or by the Plenipotentiary Conference, as appropriate.	
22
PP-02	3	A member of the Radio Regulations Board is considered no longer in a position to perform his duties after three consecutive absences from the Board meetings. The Secretary-General shall, after consultation with the Board’s Chairman as well as the member of the Board and the Member State concerned, declare existence of a vacancy in the Board and shall proceed as stipulated in No. 21 above.