SIDN Labs DENIC This document describes how OAuth 2.0 [RFC6749] enables a third party, such as a DNS Operator, to manage delegation (name server) details for a domain name on behalf of the registrant using the RESTful Provisioning Protocol (RPP). It extends the RPP OAuth 2.0 authorization model defined in [I-D.wullink-rpp-oauth2] with mechanisms specific to third-party delegation management via RPP [I-D.ietf-rpp-core].