Interstate Highway Act of 1956 passed, paving the way for increased highway construction. 1959 California enacts legislation requiring the state Department of Public Health to establish air quality standards and necessary controls for motor vehicle emissions. California's population reaches 16 million people. Total registered vehicles approach 8 million and VMT is 71 billion. The Motor Vehicle Pollution Control Board is established.
Primary function is to test and certify devices for installation on cars for sale in California.
Federal Motor Vehicle Act of 1960 is enacted. Requires federal research to address pollution from motor vehicles. It brings to public attention a stunning awareness of the disruptive impact humans have upon the earth's fragile ecosystems. 1963 PCV Requirement of 1961 goes into effect on domestic passenger vehicles for sale in California. First Federal Clean Air Act of 1963 enacted.