Mr. Art Rood was invited to be a full member of ICRP Task Group 98, Application of the Commission’s Recommendations to exposures resulting from contaminated sites from past industrial, military, and nuclear activities. The mandate of the task group is to develop a report that describes and clarifies the application of the Commission’s Recommendations on radiological protection of workers, the public, and environment to exposures resulting from sites contaminated due to past industrial, military and nuclear activities.