This document contains the Mari4_YARD Plan for Dissemination and Communication. This is the first release which has been refined, adjusted and completed during the first two years of Mari4_YARD, on the basis of the project evolution, the feedback received by the target audience and the changes in the project communication and dissemination needs. The intermediate versions of the plan were provided at M18 (D8.8) and M36 (D8.9), while the final is planned to be delivered by the end of the project (D8.10).