Changes made by Council Decision of 18 June 1973 adopting a research programme for the European Economic Community on the protection of the environment (direct project)
EU Decision 1973/174
No changes made by Council Decision of 18 June 1973 adopting a research programme for the European Economic Community on the protection of the environment (direct project) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.