Mind the gap: Gender pay inequality in the US
9 April 2013 Last updated at 16:00 BST
It is 50 years since President John F Kennedy signed America's Equal Pay Act, but figures show that women still earn less than men, on average, in every state and region of the country.
The average woman working full time in the US makes just 77 cents for every dollar a man makes, according to the National Women's Law Centre.
Fatima Goss Graves, Vice President for Education and Employment at the NWLC, spoke to the BBC's George Alagiah to discuss what should be done to promote pay equality.