On 21 October 1995, under the International Emergency Economic Powers Act (IEEPA), President Clinton signed an Executive Order barring U.S. entities from any commercial or financial transactions with four Colombian drug kingpins and with individuals and companies associated with the traffic in narcotics, as designated by the Secretary of the Treasury in consultation with the Secretary of State and the Attorney General. The list of designated individuals and companies is amended periodically and is maintained by the Office of Foreign Asset Control at the Department of the Treasury, tel. (202) 622-0077 (ask for Document #1900). The document also is available at the Department of Treasury web site.