03/05/1968
https://www.presidency.ucsb.edu...
"I am glad to approve this legislation which is to be known as the Clean Air Act."
"This order shall be effective upon its filing for publication in the Federal Register"
"I, too, upon taking office, now send a pledge of America's steadfast resolve to the North Atlantic Council."
"It clearly signals this Nation's determination to give all of our youth the education they deserve."