This document presents the strategy and tools that are used to implement the PathOS Communication, Engagement and Dissemination plan. The purpose of this plan is to design an approach that will efficiently promote the project and its results to targeted audiences and to all major stakeholders within Europe and beyond, as well as list all tools & materials that will be used to this end. Recognising the importance of engaging with, and reaching out to, the target audience early on, this document outlines the definition of the PathOS key messages for each of the key stakeholder groups. It selects the most appropriate dissemination channels for the messages to be communicated and the key stakeholder group to be reached. Working towards a long-term impact for the project, the engagement of the key target stakeholder groups is fostered by providing a communication platform that will document project outcomes including success stories, policy briefings, methods, tools, and data. This plan focuses on three main components: Identifying the key targeted groups, determining the best methods and tools for promotion and dissemination, and developing specific activities to achieve the desired outcomes. The ultimate aim is to effectively communicate with the appropriate audience through carefully chosen channels and thoughtfully planned activities * This project deliverable is currently pending approval by the EC.