This document summarizes the objectives and activities of a working group on rights metadata. The working group aims to: 1. Develop a format for bibliographic metadata that describes the readership rights of scholarly works. 2. Recommend mechanisms for publishing and distributing this rights metadata. 3. Report on the feasibility of including re-use rights information and incorporating it into the outputs. 4. Report on how adopting these outputs would address specific use cases developed by the working group. The working group is co-chaired by representatives from PLoS, CrossRef, and SPARC. It includes members from various organizations. The group discussed tags for indicating whether a work is freely available to read