Scope This publication is designed for use at the tactical and operational levels. This manual provides multiservice tactics, techniques, and procedures (MTTP) for chemical, biological, radiological, and nuclear (CBRN) decontamination. It defines the roles of military units and staffs involved in the preparation, planning, and execution of decontamination operations. It addresses the requirements for the different techniques used in decontamination. This manual focuses on the need for all United States (US) forces to be prepared to fight and win in a CBRN environment. It addresses the support theDepartment of Defense (DOD) may have to provide to support homeland security (HLS). The planning and coordination for CBRN decontamination takes place with the realization that the potential CBRN environment could be one in which there is deliberate or accidental employment of CBRN weapons, or deliberate or accidental attacks or contamination with toxic industrial material (TIM) (see Joint Doctrine for Operations in Nuclear, Biological, and Chemical NBC] Environments). Purpose This publication provides a reference for CBRN decontamination; bridges the gap between service and joint doctrine; and contains tactics, techniques, and procedures (TTP) for planning and executing operations in a CBRN environment. This manual addresses concepts, principles, and TTP to include planning, operational considerations, and training and support functions. It serves as the foundation for the development of multiservice manuals and refinement of existing training support packages (TSPs), mission training plans (MTPs), training center and unit exercises, and service school curricula. It drives the examination of organizations and materiel developments applicable to CBRN decontamination. Application The audience for this publication is combatant commands, joint task forces (JTFs), functional and service component units, and staffs in foreign and domestic locations that could be challenged by operations in a CBRN environment.