Transformative open access agreements support the University of California’s mission as a public university and advance the global shift toward sustainable open access publishing by making more UC-authored research articles open to the world, while maintaining journal affordability. UC seeks to partner with publishers of all types, sizes, and disciplines to jointly advance a worldwide transition to open access across the entire landscape of scholarly journal publishing. For more on these aims and principles, see UC’s Call to Action for Negotiating Journal Agreements at UC, the UC faculty Academic Senate’s Declaration of Rights and Principles to Transform Scholarly Communication, and UC’s priorities for publisher negotiations.