UNEP is committed to delivering high-impact projects that meet the expectations, fiduciary and safeguard standards of partners, stakeholder, beneficiaries, and Member States. To achieve its mandate, and contribute to the delivery of the 2030 agenda, UNEP requires robust systems and processes that underpin its programme and project delivery work. This Programme and Project Management Manual (PPMM) is an operational guide to end-to-end delivery of projects by UNEP. The revision of this manual in 2023 is part of a set of measures being taken by UNEP to strengthen project management controls, and to develop guidance and tools that embed strong control mechanisms across the entire project cycle from design and approval to project closure. The PPMM is designed to guide UNEP staff and its partners in effective and efficient planning and implementation of UNEP's programmes and projects. In addition to outlining the processes involved in project development, the PPMM focusses on essential topics such as results-based project cycle management, quality assurance, financial management, risk management, and monitoring and evaluation, inter alia. By following the guidance provided in the PPMM, UNEP’s programmes and projects can be effectively implemented and resources used efficiently, thus better positioning UNEP to achieve its goals in an accountable and transparent manner.