One of the goals of RDA Toolkit is to bring together the key documents and resources that catalogers need to do their work. Of course, RDA Toolkit is most significantly home to RDA: Resource Description and Access, but it also includes important resources like Library of Congress Policy Statements and AACR2. Another key resource found RDA Toolkit is your inhouse documentation. Afterall, few resources are relied upon more than those that address specifically how your institution wants to catalog.