The overall objective of Correlation – European Harm Reduction Network (C-EHRN) is to improve the access to and the quality of harm reduction services for PWUDs including other related vulnerable and marginalised people and to enhance policies and practices that increase social inclusion. The strategic objectives, activities and operational targets of C-EHRN are organised in four different pillars: Network, Monitoring and data collection, Capacity building and Advocacy. The network pillar strives to improve and strengthen the overall structure of C-EHRN and creates the prerequisites for the implementation of actions in the other three content-based pillars. These focus on drug use and harm reduction (HR) in general and more specifically on HCV in substance users, new drug trends and drug using patterns and overdose prevention. Activities within the various pillars inform and contribute to each other. C-EHRN activities in 2020 build upon the developments and achievements of the previous years and respond to current challenges. In short, this includes: Network: Further expansion and strengthening of the network, by utilizing the expertise of itsmembers and by involving them actively in the development and the implementation of C-EHRN activities. Monitoring: Enhance the content and the implementation of the C-EHRN monitoring tool, by evaluating the monitoring process and results of 2019 and by improving coverage, outcomes and applicability of the tool. C-EHRN Focal Points (FPs) and our members of the Scientific Expert Group (SEG) will play a major in this evaluation process. Capacity Building: Ongoing collection of resources and tools for the online knowledge and training hub and development of thematic papers, materials and development and organisation of trainings. Advocacy: Identify and analyse relevant policy developments and formulate an updated advocacy strategy for 2020 and 2021. C-EHRN activities and policy recommendations.