The objective of this Safety Guide is to provide guidance on implementing the requirements for the remediation of areas contaminated by past activities and accidents. It is intended to be used by regulatory bodies, operators and others responsible for remediating sites and, in the case of an accident, contributing to the recovery process. This publication provides recommendations for protective and remedial actions that are intended to reduce existing prolonged exposures due to contamination and to avert potential prolonged exposure or the likelihood of such exposure from related contamination.