RES553 – 346 – MOD RESOLUTION 553 (REV.WRC-15) Additional regulatory measures for broadcasting-satellite networks in the frequency band and 21.4-22 GHz in Regions 1 and 3 for the enhancement of equitable access to this frequency band The World Radiocommunication Conference (Geneva, 2015), considering a) that WARC-92 allocated the frequency band 21.4-22 GHz in Regions 1 and 3 to the broadcasting-satellite service (BSS) to be implemented after 1 April 2007; b) that the use of the frequency band since 1992 was subject to an interim procedure in accordance with Resolution 525 (WARC-92, Rev.WRC-03 and Rev.WRC-07); c) that the frequency band 21.4-22 GHz in Regions 1 and 3 for the BSS was subject to Resolution 507 (Rev.WRC-12), considering further a) that a priori planning for BSS networks in the frequency band 21.4-22 GHz in Regions 1 and 3 is not necessary and should be avoided as it freezes access according to technological assumptions at the time of planning and then prevents flexible use taking account of real world demand and technical developments; b) that WRC-12 established definitive arrangements for the use of the frequency band 21.4-22 GHz; c) that Articles 12 and 44 of the ITU Constitution lay down the basic principles for the use of the radio-frequency spectrum and the geostationary-satellite and other satellite orbits, taking into account the needs of developing countries; d) that those principles have been included in the Radio Regulations; e) that all countries have equal rights in the use of both the radio frequencies allocated to various space radiocommunication services and geostationary-satellite orbit and other satellite orbits for these services; f) that accordingly, a country or a group of countries having frequency assignments for the BSS in the frequency band 21.4-22 GHz need to take all practical measures to facilitate the use of new space systems by other countries or groups of countries; g) that according to No. 23.13, in devising the characteristics of a space station in the BSS, all technical means available shall be used to reduce, to the maximum, the radiation over the territory of other countries unless an agreement has been previously reached with such countries,