From 1946 Noël Salter exhibited unfloundering support for European unity. He was the founding President of the Oxford Universtiy United Europe Movement. He was Secretary for European quesions to R.W.G. MacKay, MP, Chairman of the all-party group for European unity in the House of Commons. In 1947 he was British delegate to the First Congress of the European Union of Federalists at Montreux and in 1948 British delegate to the First Congress of Europe at the Hague where he voted in favour of the creation of the Council of Europe. During the period 1950 - 1951 he was Clerk to the Committee on Legal and Administrative Questions of the Consultative Assembly (European Convention for the Protection of Human Rights and Fundamental Freedoms) and from 1952 - 1955 he was an adviser on the drafting of the European Statute of the Saar. He later joined the WEU in 1955. In 1964 Salter gave up his diplomatic career to work for the the British Council of Churches. From 1968 to 1973 he was at the Commonwealth Secretariat in London. He then joined the European Commission in Brussels at the Directorate General for Development and Cooperation.