In 2022, the Deans of the University Libraries requested the Open Access Guild to produce an account of current Libraries spending on Open Access (OA) resources and publishing, and to provide recommendations for the continuation and enhancement of that support. The OA Guild focuses on scholarly communication work requiring collaboration and cooperation on open access initiatives from across the Libraries. Since CU Scholar, the digital repository for the University of Colorado Boulder, is managed by the Center for Research Data and Digital Scholarship (CRDDS) and is outside the scope of the Guild, this report does not include recommendations related to CU Scholar, Green OA infrastructure or other open infrastructural efforts, which are being addressed separately by various groups in the Libraries. Instead, this report outlines strategies to move CU Boulder researchers collectively towards an open access

future by increasing and accelerating the adoption of open access publishing in both Gold and Hybrid OA routes as part of our overall collection development strategy.