CAPonLITTER aims at improving policies and practices that can help in preventing marine litter that results from coastal tourism and recreational activities. More specifically, the project will focus on key fractions of waste, such as plastic food and drink containers originating from beach facilities and recreational events, due to improper behaviour of consumers but also to lack of incentives and structures for prevention, collection and recycling of waste. The project involves authorities and organisations from Portugal, Spain, France, Croatia, Greece, Bulgaria and Germany, territories in which coastal tourism is a key economic activity, which is not only highly impacted by marine litter but can also put significant pressure on local infrastructures and generate large amounts of unmanaged waste. Through an interregional process of exchange of experiences and mutual learning, partners will explore ways to improve their regional policies and promote the implementation of best practices, with the active participation of key stakeholders. The interregional process will result in 7 regional Action Plans that will set into motion the operationalisation of the lessons learned in two ways: on one hand initiating the implementation of the practices in the territories concerned, through the policy framework the partners operate on; and on the other aligning them with other policy instruments, such as operational programmes and specific structural funds that can finance them. Across these regions, CAPonLITTER will result in various communities of stakeholders commited to zero plastic waste, beaches and coastal events with zero waste management plans in place to prevent marine litter, including significant improvements toward waste prevention, collection and recycle at these coastal sites.