This document provides guidance for managing a minimum viable project management office (PMO) in organizations that do not allocate sufficient time for project managers. It recommends implementing minimum viable tools and practices to help part-time project managers effectively manage projects while maintaining reporting standards. The goal is to help portfolio managers and minimum viable PMOs implement a resource-optimized set of expectations, tools, and training. Rather than rigid methodologies, the focus should be on the minimum required for accurate portfolio reporting and effective project management given time constraints faced by organizations.