Equal Pay Act of 1963
In 1942, Republican congresswoman Winifred C. Stanley from Buffalo, N.Y. introduced H.R. 5056, Prohibiting Discrimination in Pay on Account of Sex, which did not pass at the time. The issue languished until 10 June 1963, when Congress passed the Equal Pay Act ("EPA" or the "Act") as an amendment to the Fair Labor Standards Act, to "prohibit discrimination on account of sex in the payment of wages by employers."
Equal pay for equal work
In 2009, President Obama signed the Lilly Ledbetter Fair Pay Act, permitting women to sue employers for unfair pay up to 180 days after receiving an unfair paycheck. On 29 January 2016, he signed an executive order obliging all companies with at least 100 employees to disclose the pay of all workers to the federal government, with breakdowns of pay by race, gender, and ethnicity. The goal is to encourage employers to give equal pay for equal work by increasing transparency.