PFAS, the so-called “forever chemicals”, are currently one of the most pressing environmental challenges in the Baltic Sea region as identified in the latest holistic assessment of the Baltic Sea (HOLAS 3). To address this challenge posed by the per- and polyfluoroalkyl group of substances in the capacity development perspective, the EMPEREST project develops a comprehensive and versatile set of tools and recommendations to ensure a holistic approach to PFAS removal, including a training material for water experts.