Although federal minimum-wage laws were at first held unconstitutional in the United States, a strong fight by organized labor for enactment culminated in the passage (1938) of the Fair Labor Standards Act, which set minimum wages at $.25 per hour for workers engaged in interstate commerce (with some exceptions); the act also set up industry committees to recommend rates for every industry. In 1950 the minimum wage was raised to $.75 per hour. Thereafter, it was raised several times (for example, in 1956 to $1.00, in 1963 to $1.25, and in 1968 to $1.60). In 1974, Congress passed a bill providing for a gradual increase from the prevailing $1.60 per hour to $2.30 per hour by 1976. The bill also extended minimum-wage rules to some 8 million workers not previously covered, including state and local government employees, most domestic workers, and some employees of chain stores. Additional increases raised the minimum wage to $3.10 per hour (1980), $4.25 (1991), and $5.15 (1997). Legislation passed in 2007 raised the minimum wage, in three stages, to $7.25 in 2009. Since 1989 businesses earning less than $500,000 annually have not been subject to minimum-wage rules. A number of states have minimun wages that are higher than the federal minimum wage.
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