The NEA Committee on Radiation Protection and Public Health (CRPPH) celebrated its 50th anniversary in May 2007. Taking advantage of its half century of experience, the Committee took this occasion to look forward towards the next 50 years in order to identify the most significant emerging challenges to radiological protection policy, regulation and application. This report summarises the presentations and discussions of the high-level regulators and international radiological protection organisations’ leaders who attended, providing their views on how the radiological protection community can best move forward together to address emerging challenges.