The Management Plan covered by this document describes the organization and management strategy of the Systems Integration, Test and Commissioning team (here after SIT-Com) through the end stages of development, construction, and commissioning of the Rubin Observatory. The SIT-Com team is composed of a core group of people from the Rubin Construction Project working nearly full time on SIT-Com activities as well as numerous others contributing from across all of the Project subsystems and the scientific user community - both domestic and foreign. This document describes the composition of the distributed SIT-Com team and the management strategy of the team who are undertaking tasks with wide ranging disciplines. It also lays out the management organization, leadership structure, and the team members’ roles and responsibilities. This document also describes the team’s regular interactions, and details the workflow of how information and tasks are communicated up and down the chain of the broader Project structure and management. This document does not supplant the Systems Engineering Management Plan (SEMP LSE-17) and is meant to augment the SEMP with the wider scope of the SIT-Com effort. Lastly, this document provides a high-level overview of SIT-Com scope, products and processes and acts as a structured starting point for understanding SIT-Com and provides pointers to Project system level documentation.