*FM 3-5 *MCWP 3-37.3 Headquarters, Field Manual Department of the Army No. 3-5 Commandant, Marine Corps Warfighting Publication (MCWP) US Marine Corps 3-37.3 Washington, DC, 28 July 2000 NBC DECONTAMINATION Contents Page PREFACE.vi Chapter 1 INTRODUCTION.1-1 Contamination Forms.1-1 Contamination-Hazards Transmission.1-1 Agent Classification .1-2 Decontaminants .1-2 Decon Concepts.1-2 Decon Decisions .1-2 Decon Principles .1-3 Decon Levels .1-4 Immediate.1-4 Operational. 1-4 Thorough. 1-4 Chemical-Agent-Resistant Coating (CARC) . 1-5 Weather Effects .1-5 Temperature. 1-5 Wind. 1-5 Humidity and Rain. 1-5 Sunlight. 1-5 Time. 1-5 Decon in Combat .1-5 Chapter 2 IMMEDIATE DECON .2-1 Skin Decon .2-1 Chemical. 2-1 DISTRIBUTION RESTRICTIONS: Distribution is authorized to US Government agencies only to protect technical or operational information from automatic dissemination under the International Exchange Program or by other means. This determination was made on 31 March 2000. Other requests for this document will be referred to Commandant, US Army Chemical School, ATTN: ATSN-CMZ, Fort Leonard Wood, Missouri 65473 DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of the document.
Chapter 1 Introduction The use of NBC weapons creates unique residual hazards that may requiredecon.Inadditiontothedeliberateuseoftheseweapons,collateral damage,naturaldisasters,andindustrialemittersmayrequiredecon.The presence of contamination generally reduces the effectiveness of our combat power. Contamination forces us into protective equipment that degrades our ability to perform individual and collective tasks.
Chapter 2 Immediate Decon Once a soldier is aware of chemical or biological contamination on his bare skin,heinitiatesimmediatedecontechniques,withoutcommand,by using hispersonal SDK. Hedecontaminateshishood,mask,gloves,andweapon using the IEDK or an additional SDK. To remove radiological contamination from equipment and personnel, brush it off and/or use soap and water.
Chapter 3 Operational Decon Anoperationaldeconlimitsthespreadofcontamination,allowstemporary relief from MOPP4, and facilitates additional decon requirements. By speeding up the weathering process, the need for a thorough decon may be eliminated. This process requires about a 120-square-yard area and, depending on the number of contaminated vehicles, may not require a nearby water source. An operational decon consists of a vehicle washdown and a MOPP-gear exchange. The techniques that may be used to conduct an operational decon are decentralized company control, centralized battalion control, or centralized brigade control.
Chapter 4 Thorough Decon Thorough-decon operations reduce and sometimes eliminate contamination. They restore combat power by removing nearly all contamination from unit and individual equipment so that troops can operate it safely for extended periods at reduced MOPP levels. Since a small risk of contamination remains, periodic checks with the CAM, the M8/M9 detector paper, or the M256A1 detector kit must be performed after each operation. A thorough decon can be done as part of reconstitution, or it can be done to support operations throughout the battlefield. After a thorough decon, the unit moves out of the decon site into a tactical AA. The unit, while in this tactical assembly, may undergo reconstitution or prepare for future operations. Combat-service-support (CSS) elements replenish combat stocks, refit equipment, and replace personnel and equipment, as required. The contaminated unit, with some assistancefrom achemicalunit,doestheDTD.Asupportingchemicalunit does the DED or DAD. The planning considerations that are required to conduct thorough-decon operations andthe methods that various chemical units (decon and smoke/decon) use to conduct DTD/DED are discussed in this chapter. The exact layout of a thorough-decon site is determined by METT-TC.
Chapter 5 Special Decon Operations The decon of terrain or structures allows personnel to increase their stay time in an area and facilitates their passage through an area. Large-scale terrain decon requires extensive amounts of equipment, material, and time. Thus, terrain decon is limited to areas of critical importance.
Chapter 6 Effects of Environmental Conditions US forces may find themselvesanywhere inthe worldand subjectedto the conditions in that region. Weather and terrain conditions will dictate how to fight and what equipment is most effective to support the fighting force under NBC conditions. The conditions in cold- and arctic-weather areas, warmed areas, urban areas, mountains, jungles, and deserts impact how decon operations are performed.
Chapter 8 Patient Evacuation and Decon Evacuating patients under NBC conditions forces the unit commander to consider to what extent he will commit evacuation assets to enter the contaminated area. Generally, if most or all of a supported force is operating in a contaminated area, most or all of the medical-evacuation assets will operate there also. If it is possible to keep some ambulances free from contamination, every effort should be made to do so.