The purpose of this presentation is to discuss the existing and emerging decontamination technologies for use following a chemical and/or biological weapons incident at civilian and/or public sector facilities. Additionally, the necessary requirements of these technologies to successfully decontaminate civilian facilities and the approach needed to obtain regulatory compliance will also be discussed. The types of decontamination methods likely to be most successful are different than would be most effective in response to a military and/or wartime incident. Current military decontamination techniques aimed at CBW agents are corrosive and/or toxic and can cause collateral damage to facilities and equipment. As a result of recent terrorist events, there is increased interest in decontaminating agents and their effectiveness for the civilian sector. The optimum technology would be non-toxic, non-corrosive, and easily deployable, thereby insuring effective use by first-line responders. Methods should allow for detoxification and/or degradation to environmentally acceptable components rather than necessitate complete destruction. Effective decontamination requires the use of reagents that can be dispersed as solids, liquids, and/or gases, depending on the particular scenario involved. Several technologies currently under development are aimed at meeting these requirements. however, there are some distinct scenarios for which current technology is still inadequate to respond in a rapid and effective manner. Effective decontamination also requires effective sampling and verification methods to demonstrate that cleanup goals have been attained. The final decontamination must be defensible to regulatory agencies and to an uninformed public. In order to accomplish this we must understand and even influence the answer to the question: "How clean is clean enough?" The level of decontamination required will influence the choice of these systems under consideration.