Portugal’s National Risk Assessment includes widespread representation from all sectors in society under the direction of the National Commission for Civil Protection where civil protection is based on territorial management organised at national, regional and municipal level. Uniquely Portugal’s NRA excludes risks of an international dimension which was a deliberate policy choice. In addition, the NRA contributes to the National Platform for Disaster Risk Reduction in respect to implementation of the Sendai Framework in Portugal. This chapter discusses the methodology for hazard identification/analysis and vulnerability, and impact analysis in some detail. The process follows European good practice guidelines (Risk Assessment and Mapping Guidelines for Disaster Management) with a view prevailing that it is not necessary to try to re-invent the wheel. Communication of the NRA process is widespread through each government ministry and the public have access online where some areas are restricted.