RES28 – 190 – resolves 1 that each radiocommunication assembly shall communicate to the following WRC a list of the ITU-R Recommendations containing text incorporated by reference in the Radio Regulations which have been revised and approved during the elapsed study period; 2 that, on this basis, WRC should examine those revised ITU-R Recommendations, and decide whether or not to update the corresponding references in the Radio Regulations; 3 that, if the WRC decides not to update the corresponding references, the currently referenced version shall be maintained in the Radio Regulations; 4 that WRCs shall place the examination of ITU-R Recommendations in conformity with resolves 1 and resolves 2 of this Resolution on the agenda of future WRCs, instructs the Director of the Radiocommunication Bureau to provide the CPM immediately preceding each WRC with a list, for inclusion in the CPM Report, of those ITU-R Recommendations containing texts incorporated by reference that have been revised or approved since the previous WRC, or that may be revised in time for the following WRC, urges administrations 1 to participate actively in the work of the radiocommunication study groups and the radiocommunication assembly on revision of those Recommendations to which mandatory references are made in the Radio Regulations; 2 to examine any indicated revisions of ITU-R Recommendations containing text incorporated by reference and to prepare proposals on possible updating of relevant references in the Radio Regulations.