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This document includes the Mission Statement and the Terms of Reference of the Task Force on Remote Sensing of Marine Litter and Debris of the International Ocean-Colour Coordinating Group (IOCCG). The Task Force has as an overarching goal to coordinate the advancement of current and future remote sensing technologies and techniques that have potential to provide observations of marine plastic litter over all aquatic environments. Considering all remote sensing technologies (with a special focus on radiometric approaches), the Task Force aims to promote a unified interdisciplinary international team of remote sensing experts with the goal to coordinate the development of traceable and transparent approaches for detecting, identifying, quantifying and tracking requirements of plastic litter. These requirements will be supported by four interlinked core topics that are the foundation pillars of the Task Force; (i) technologies, (ii) algorithms and applications, (iii) datasets and (iv) interdisciplinary aspects.