10/02/1964
https://www.presidency.ucsb.edu...
"By virtue of the authority vested in me by Section 301 of Title 3 of the United States Code, and as President of the United States, it is hereby ordered as follows—Section 1."
"And I would express the hope that all nations may become willing to join in such great enterprises for the good of mankind."
"I expect, therefore, that the agencies of the Government will take the lead in adopting the ZIP Code system, including the presorting of quantity mailings."
"This 89th Congress has leadership--good, strong, wise, experienced, progressive Democratic leadership of the very highest quality."