08/08/1966
https://www.presidency.ucsb.edu...
"In the event of inability the President would--if possible--so inform the Vice President, and the Vice President would serve as Acting President, exercising the powers and duties of the Office until t..."
"In the event of an inability which would prevent the President from so communicating with the Vice President, the Vice President, after such consultation as seems to him appropriate under the circumst..."
"We can now believe that it will never again shadow the gate to the American Nation with the twin barriers of prejudice and privilege."
"It corrects a cruel and enduring wrong in the conduct of the American Nation."