12/07/1977
https://www.presidency.ucsb.edu...
"The imposition of the import fees hereinafter proclaimed is necessary in order that the entry for consumption of such sugars will not render ineffective price support operations."
"This Order shall be effective December 31, 1978."
"I find and declare that sugars are being imported into the United States under conditions that interfere with price support operations for sugar cane and sugar beets."
"Each advisory committee listed below is continued until December 31, 1980."