Massachusetts is set to adopt a first of its kind equal pay law - one that its supporters are lauding as the most thorough in the nation. The law ... will make it illegal for employers to inquire about salary or wage history. However, employees will be able to share their salary history if they choose to. Massachusetts is the first US state to bar inquiries into salary history. The law is intended to break the pattern of unequal pay for women in the workforce, since employers will no longer be encouraged to low-ball female employees in negotiations who may have been paid unequally in their previous jobs. For too many generations women have done equally hard, equally skilled, and equally responsible work as men in the same workplace," said state senator Pat Jehlen, one of the bill's backers. "This is an important milestone on the journey toward equity for women and families all across this Commonwealth." Supporters cite a study which shows women in the state still earn 82 cents for every dollar earned by their male peers, despite the fact that Massachusetts was the first in the nation to adopt an equal pay law more than 60 years ago, nine years before the first federal legislation was passed. [The law] will also make Massachusetts the one of a few states including California and New York to pass a "comparable work" law, giving leverage to employees who may try to sue their employers over unequal pay.