Marine with Explosive Ordnance Disposal and Chemical, Biological, Radiological, and Nuclear Defense decontaminate gear during a joint training exercise, March 8. Some of the procedures Marines might execute during a chemical, biological, radiological, and nuclear attack include detection, sampling, identification and neutralization of hazardous materials and chemicals, extraction of contaminated personnel, technical and mass decontamination, and sensitive site exploitation. - Marine with Explosive Ordnance Disposal and Chemical, Biological, Radiological, and Nuclear Defense decontaminate gear during a joint training exercise, March 8. Some of the procedures Marines might execute during a chemical, biological, radiological, and nuclear attack include detection, sampling, identification and neutralization of hazardous materials and chemicals, extraction of contaminated personnel, technical and mass decontamination, and sensitive site exploitation.