This document provides guidance on outsourcing services for the Hong Kong government. It discusses the vision and mission of the Efficiency Unit, which aims to be the preferred consulting partner for government bureaus and departments to advance world-class public services. The document outlines reasons for outsourcing including focusing on core services, accessing skills, and improving service quality. It emphasizes that outsourcing should achieve value for money. The document provides a multi-stage process for outsourcing and considerations at each stage such as reviewing required services, tendering and selecting contractors, and contract management.