The first full employment law in the United States was passed in 1946. It required the country to make its goal one of full employment...With the Keynesian consensus that government spending was necessary to stimulate the economy and the depression still fresh in the nation's mind, this legislation contained a firm statement that full employment was the policy of the country.
As originally written, the bill required the federal government do everything in its authority to achieve full employment, which was established as a right guaranteed to the American people. Pushback by conservative business interests, however, watered down the bill. While it created the Council of Economic Advisers to the President and the Joint Economic Committee as a Congressional standing committee to advise the government on economic policy, the guarantee of full employment was removed from the bill.
In the aftermath of the rise in unemployment which followed the "oil crisis" of 1975, Congress addressed the weaknesses of the 1946 act through the passage of the Humphrey-Hawkins Full Employment Act of 1978. The purpose of this bill as described in its title is:
"An Act to translate into practical reality the right of all Americans who are able, willing, and seeking to work to full opportunity for useful paid employment at fair rates of compensation; to assert the responsibility of the Federal Government to use all practicable programs and policies to promote full employment, production, and real income, balanced growth, adequate productivity growth, proper attention to national priorities."
http://www.thedemocraticstrategist.org/strategist/2011/08/protest_needed_to_enforce_full.php