Question: who was president when the clean air act was passed
Answer: 432 ) Reported by the joint conference committee on December 5 , 1963 ; agreed to by the House on December 10 , 1963 ( 276 - 112 ) and by the Senate on December 10 , 1963 ( passed voice vote ) Signed into law by President Lyndon B. Johnson on December 17 , 1963 Major amendments Motor Vehicle Air Pollution Control Act of 1965 ( 79 Stat.