http://www.legislation.gov.uk/uksi/1978/1103/signature/made
The European Communities (Definition of Treaties) (No. 6) (International Development Association) Order 1978
Westlaw
King's Printer of Acts of Parliament
2011-04-05
EUROPEAN COMMUNITIES
This Order declares the Agreement of 2nd May 1978 between the European Economic Community, its Member States and the International Development Association to be a Community Treaty as defined in section 1(2) of the European Communities Act 1972. The principal effect of declaring this Agreement to be a Community Treaty as so defined is to bring into play, in relation to that Agreement, the provisions of section 2 of the European Communities Act 1972 and so to provide authority for payment by the United Kingdom of the contributions required under the Agreement.
N.E. LeighClerk of the Privy Council