Changes made by Council Directive 75/129/EEC of 17 February 1975 on the approximation of the laws of the Member States relating to collective redundancies
EU Directive 1975/129
No changes made by Council Directive 75/129/EEC of 17 February 1975 on the approximation of the laws of the Member States relating to collective redundancies are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.