Changes to Council Directive 73/132/EEC of 15 May 1973 on the statistical surveys to be carried out by Member States on bovine livestock, on forecasts on the availability of bovine animals for slaughter and on statistics on slaughtered bovine animals
EU Directive 1973/132
Made by Council Directive 88/659/EEC of 19 December 1988 amending Directives 73/132/EEC, 76/630/EEC and 82/177/EEC on the statistical surveys to be carried out on Community livestock following the introduction of the combined nomenclature
From legislation.gov.uk's record of changes, the official one: see it there.