This research on &quote;Guidance on the selection of PTA tools for stakeholders involved in radioactive waste governance&quote; was performed under the umbrella of COWAM2-'Work Package 1' (WP1). Through a dialogue on enhancing involvement at a local level, WP1 allows local stakeholders to examine the issues they face in building a democratic local governance process. WP1 also tests how Participatory Technology Assessment (PTA) methods can offer a consensual framework and a platform for deliberative co-decision among scientific and societal actors at the local level.

The investigation consists of three parts and shall provide an input to the – empirical – PTA-2 study to be undertaken by SCK•CEN (called “lens”):<br>A. Compilation of – selected – existing PTA methods and procedures identifying requisites, practices, benefits, and challenges to answer the key questions in the context of WP1 about a PTA “toolbox”: “What can you apply, when can you apply, and what is needed to apply?” The multi-dimensional context of a possible “PTA situation” is analysed; suitable and nonsuitable methods, techniques and procedures are discussed.<br>B.