This revised document was reviewed and endorsed in September 2003 by the Committee on the Safety of Nuclear Installations (CSNI) Working Group on the Analysis and Management of Accidents (WGAMA), which performed a survey in 2003 on updating CSNI Report No. 17, “CSNI Standard Problem Procedures”. CSNI Report No. 17 was published in 1977 and previously updated in 1989. The objective of this activity was to collect proposals regarding the improvement of ISP efficiency with respect to their objectives and the improvement of the quality of the procedures document.