These reports were provided in accordance with the provisions of the Single Convention, 1961 and the Convention on Psychotropic Substances. The international drug control treaties require countries that are parties to furnish this information in addition to that contained in annual reports on the working of the treaties. The data were provided by countries that were parties as well as those that were not parties to the treaties. This summary presents the information in tabular form and provides details from the larger seizures among the 2,259 seizure reports received during the period. Some of the seizures involved several drugs. Twenty-seven countries reported seizures. Table