The Home Office in January 1977 invited submissions for inclusion in the United Kingdom proposals to the World Administrative Radio Conference 1979 (WARC 1979.) Prior to that, in August 1976 in Boston, U.S.A., the member Institutes of the International Association of Institutes of Navigation had agreed to exchange views on matters of concern to the world's navigational community which in particular might be considered by WARC. It was envisaged that any approach by the various national Institutes would be through their own administrations.