12/09/1920
https://www.presidency.ucsb.edu...
"I hereby designate the Secretary of State as the official who shall grant, or in whose name shall be granted, permission to aliens to depart from or enter the United States;"
"No citizen of the United States shall receive a passport entitling him to leave or enter the United States, unless it shall affirmatively appear that there are adequate reasons for such departure or e..."
"No alien shall receive permission to depart from or enter the United States unless it shall affirmatively appear that there is reasonable necessity for such departure or entry and that such departure ..."
"I hereby direct all departments of the Government to cooperate with the Secretary of State in the execution of his duties under this proclamation and the rules and regulations promulgated in pursuance..."