Changes made by 78/471/Euratom: Council Decision of 30 May 1978 on the establishment of the 'Joint European Torus (JET), Joint Undertaking'
EU Decision 1978/471
No changes made by 78/471/Euratom: Council Decision of 30 May 1978 on the establishment of the 'Joint European Torus (JET), Joint Undertaking' are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.