The Department of Education on Thursday released a long-anticipated proposal revising its regulations on the enforcement of Title IX, overhauling a signature policy achievement of the Trump administration and former Secretary of Education Betsy DeVos.

The newly proposed regulation, which now enters a 60-day period of public comment, expands the definition of “sex” under the famous civil rights law to include sexual orientation and gender identity as protected classes under the law’s nondiscrimination provisions.