In 2015 the Association for Library Collections and Technical Services Cataloging and Metadata Management Section (ALCTS CaMMS) Competencies for a Career in Cataloging Interest Group (CECCIG) charged a task force to create a core competencies document for catalogers. The process leading to the final document, the Core Competencies for Cataloging and Metadata Professional Librarians, involved researching the use of competencies documents, envisioning an accessible final product, and engaging in collaborative writing. Additionally, the task force took certain measures to solicit and incorporate feedback from the cataloging community throughout the entire process. The Competencies document was approved by the ALCTS Board of Directors in January 2017. Task force members who were involved in the final stages of the document’s creation detail their processes and purposes in this paper and provide recommendations for groups approaching similar tasks.