Four work packages (WP) including a wide range of marine litter mitigation activities will be carried out under PROMAR. The project team, in coordination with local authorities, will initiate a monitoring system for waste streams (WP I), test and replicate Circular Economy solutions (WP II), raise awareness of the litter problem among stakeholders (WP III), and finally promote the concept of EPR at a national and regional level and support a policy dialogue on the issue (WP IV).