Wilhelmina Randtke, Randy Fischer, and Gail Lewis have published "Consortial RightsStatements.org Implementation and Faceted Search for Reuse Rights in Digital Library Materials" in the Code4Lib Journal.
Here's an excerpt:
The Florida Academic Library Services Cooperative (FALSC) makes available digital library hosting free-of-charge to all institutions of Florida public higher education. 21 institutions participate in the Islandora digital library platform hosted through FALSC. Centralized digital library hosting through FALSC, or its predecessor consortium, has been available since 1994. Meanwhile, the RightsStatements.org standard, which provides a controlled vocabulary for indicating the copyright status of digital library material, was released in 2016. After the standard was released, participating libraries expressed interest in implementing RightsStatements.org for existing digital content. During Fall 2018 and Spring 2019, FALSC implemented RightsStatements.org values on Islandora sites. This article describes the process undertaken by FALSC, the lessons learned, and recommendations for libraries looking to implement RightsStatements.org values.