1. The Codex Committee on Residues of Veterinary Drugs in Foods held its Tenth Session from 29 October to 1 November 1996 in San José, Costa Rica, at the kind invitation of the Government of the United States of America in cooperation with the Government of Costa Rica and the Inter-American Institute for Cooperation on Agriculture (IICA). The Session was chaired by Dr. Stephen Sundlof, Director, Center for Veterinary Medicine, United States Food and Drug Administration. The Session was attended by 141 participants from 34 Member countries and 12 international organizations. A list of participants is attached to this report as Appendix I.