06/05/1963
https://www.presidency.ucsb.edu...
"Hereby proclaim an embargo upon trade between the United States and Cuba in accordance with paragraphs 2 and 3 of this proclamation."
"Hereby prohibit, effective 12:01 A.M., Eastern Standard Time, February 7, 1962, the importation into the United States of all goods of Cuban origin and all goods imported from or through Cuba."
"Direct the Secretary of Commerce, under the provisions of the Export Control Act of 1949, as amended, to continue to carry out the prohibition of all exports from the United States to Cuba."
"I urge, therefore, that the Congress promptly consider this legislation."