Citizen science, i.e. the active engagement of citizens in scientific knowledge production, is a mode of research that can be applied in a wide
variety of scientific fields and is valuable for addressing a broad range of policy priorities. Technological and societal drivers, such as the digital
transition and raised public awareness and interest in science, are underpinning a growth in citizen science. This report is primarily intended for
research policymakers in ministries and funding agencies to help them recognise the potential for the use of citizen science and to plan, implement
and evaluate effective citizen science policies. It includes a set of overall recommendations, linked to a policy framework and policy options and
combined with analysis of illustrative national and international initiatives.