When did the slogan Stay Alive - Drive 55 first used?

The slogan was part of public awareness of the new Emergency Highway Energy Conservation Act. (This law, crackdown on roads designed by the Interstate Highway system to be traveled 70 resulted in such a public backlash to sell Sammy Hagar's hit single "I Can't Drive 55")

The Emergency Highway Energy Conservation Act was a bill in the U.S. Congress that enacted the National Maximum Speed Law. States had to agree to the limit if they desired to receive federal funding for highway repair. The uniform speed limit was signed into law by President Nixon on January 2, 1974, and became effective 60 days later, by requiring the limit as a condition of each state receiving highway funds, a use of the Commerce Clause of the United States Constitution.