California Gov. Jerry Brown signed legislation Monday guaranteeing certain rights for transgender students in K-12 public schools. The School Success and Opportunity Act, the first of its kind in the U.S., compels public schools in the state to provide equal access to all sports teams, activities and facilities to students who identify as transgender. The measure was passed on a largely party-line vote. "This important moment in California will ensure that transgender students have the equal opportunity to succeed in school and graduate on time regardless of their gender identity," said Eliza Byard, executive director of the Gay, Lesbian & Straight Education Network, in a statement.