Changes made by 74/618/ECSC: Commission Decision of 4 December 1974 concerning documents which iron and steel undertakings must produce for inspection by officials or authorized agents of the Commission carrying out checks regarding the ECSC levy
EU Decision 1974/618
No changes made by 74/618/ECSC: Commission Decision of 4 December 1974 concerning documents which iron and steel undertakings must produce for inspection by officials or authorized agents of the Commission carrying out checks regarding the ECSC levy are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.