Hazardous waste poses a major threat to the sustainable economic development of the BSR. Urgent needs arising from the Enlargement focus on boosting waste management efficiency, upgrading waste treatment infrastructure, building an administrative infrastructure to implement EU legislation, establishing a regional waste planning framework for balanced development and creating reliable investment perspectives. Failure to adopt a pro-active strategy in this critical area will result in waste streams following the path of least financial resistance, the prolongation of non-cohesive structures and the misdirection of investment initiatives. The key project objective was to enroll waste management authorities around the Baltic Sea into a coordinated effort to integrate the crucial issues of hazardous waste stream management and best practice waste infrastructure planning into the BSR spatial planning agenda and thereby provide sustainable waste stream management within the new BSR Economic Development Framework. This is underlined by the specific objectives of the five work packages.