A Radioanalytical Emergency Procedures Manual Database (REPMD) will be an important tool to assist laboratories preparing for emergency response to a sudden release of radioactivity into the environment. The collection and systematic organization of existing sampling, screening and radioanalytical methods will enable laboratories to assess the appropriate methodologies for their use. REPMD is intended to be flexible, searchable, and interactive to accommodate a wide range of available techniques while being protected from unauthorized modifications. Website access by the world-wide scientific community will make the database a foundation for international comparison. The information in the database will also serve as a comprehensive and periodically updated source of methods and procedures suitable for training programs and rapid reference.