07/24/1991
https://www.presidency.ucsb.edu...
"I intend to suspend Syria indefinitely as a designated beneficiary developing country for purposes of the GSP."
"U.S. policy is to cooperate with foreign states in achieving law enforcement objectives."
"I have determined, based on that advice and on the considerations described in sections 501 and 502(c) of the 1974 Act, that such waivers are in the national economic interest of the United States."
"Effective with respect to articles entered, or withdrawn from warehouse for consumption, into the customs territory of the United States on or after the date provided in paragraph (1) of this proclama..."