European communities no. 46 (1986). Agreement in the form of an exchange of letters between the European Atomic Energy Community (Euratom) and the government of Canada amending the agreement of 6 October 1959 for co-operation in the peaceful uses of atomic energy with exchanges of letters extending and replacing the "interim arrangement concerning enrichment, reprocessing and subsequent storage of nuclear material within the community and Canada" annexed to the agreement of 16 January 1978 [electronic resource].