California State Assemblywoman Lorena Gonzalez Fletcher (D-San Diego) Thursday won state Senate approval of her legislation to combat the reality that women earn less than men for the exact same work.

Studies have proven beyond dispute that women in the U.S. are paid, on average, less than men for doing the same jobs. AB 1209, known as the Gender Pay Gap Transparency Act, will require large companies to report their mean and median salary data by classification and gender to the Secretary of State, who will then post the data online so that consumers can easily see which companies fairly compensate the women who work for them.

“Women in this country aren’t paid fairly – it’s gender discrimination pure and simple,” Assemblywoman Gonzalez Fletcher said. “Sunlight is a great way to help expose and address this problem. This bill will give the public very precise data about which big companies are paying women the salaries they deserve, and which aren’t.”

The Gender Pay Gap Transparency Act now heads to the Assembly for a final vote next week. The 22-13 vote in the Senate comes just a week after President Trump announced his administration would repeal an Obama-era rule on gender gap wage data collection. The Obama Administration’s program, as well as the Equality Act that went into effect this April in the United Kingdom, include many similar requirements as AB 1209.