Changes to Council Directive 89/647/EEC of 18 December 1989 on a solvency ratio for credit institutions
EU Directive 1989/647
Made by Commission Directive 95/15/EC of 31 May 1995 adapting Council Directive 89/647/EEC on a solvency ratio for credit institutions, as regards the technical definition of 'Zone A' and in respect of the weighting of asset items constituting claims carrying the explicit guarantee of the European Communities
From legislation.gov.uk's record of changes, the official one: see it there.