The important event to be settled in the correspondence between the RGO, the National Physics Laboratory and the US Naval Observatory was the meeting at the home of H.M. Smith, July 1959, at which it was decided that the emission times of UK radio time signals should be co-ordinated with those of US radio time signals. Following this initiative, the Bureau International de l'Heure subsequently assumed responsibility for ensuring the co-ordination of all international radio time signals.