This guide is intended to provide easy-to-understand information for participants in meetings of the Commission on Phytosanitary Measures (CPM). It includes an overview of the International Plant Protection Convention and the current governance structures. The guide explains the central role of CPM meetings, including who may attend CPM meetings and how the meetings are structured. It also emphasizes the importance of preparing to attend CPM meetings, participating effectively in CPM meetings and following up on the outcomes of CPM meetings. The guide takes the readers, step by step, through the process of preparing for a CPM meeting and offers best practices and tips to support effective participation in the meeting and follow-up after the meeting.