Changes made by Council Directive 73/148/EEC of 21 May 1973 on the abolition of restrictions on movement and residence within the Community for nationals of Member States with regard to establishment and the provision of services
EU Directive 1973/148
No changes made by Council Directive 73/148/EEC of 21 May 1973 on the abolition of restrictions on movement and residence within the Community for nationals of Member States with regard to establishment and the provision of services are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.