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89 1. A world radiocommunication conference may partially or, in exceptional cases, completely, revise the Radio Regulations and may deal with any question of a worldwide character within its competence and related to its agenda: its other duties are specified in the Convention.
90 PP-98 2 World radiocommunication conferences shall normally be convened every three to four years; however, following the application of the relevant provisions of the Convention, such a conference need not be convened or an additional one may be convened.
91 PP-98 3 Radiocommunication assemblies shall also normally be convened every three to four years, and may be associated in place and time with world radiocommunication conferences so as to improve the efficiency and effectiveness of the Radiocommunication Sector. Radiocommunication assemblies shall provide the necessary technical bases for the work of the world radiocommunication conferences and respond to all requests from world radiocommunication conferences. The duties of the radiocommunication assemblies are specified in the Convention.
92 PP-98 4. The decisions of a world radiocommunication conference, of a radiocommunication assembly and of a regional radiocommunication conference shall in all circumstances be in conformity with this Constitution and the Convention. The decisions of a radiocommunication assembly or of a regional radiocommunication conference shall also in all circumstances be in conformity with the Radio Regulations. When adopting resolutions and decisions, the conferences shall take into account the foreseeable financial implications and should avoid adopting resolutions and decisions which might give rise to expenditure in excess of the financial limits laid down by the Plenipotentiary Conference.