The capability of a system and its crew to withstand a NBCC environment and relevant decontamination without losing the ability to accomplish the assigned mission. A NBCC survivable system is hardened against NBCC and decontaminates; it can be decontaminated, and it is compatible with individual protective equipment. •Hardness. The capability of material to withstand the materiel -damaging effects of NBCC and relevant decontamination. •Decontamination. The process of making personnel and materiel safe by rendering harmless or removing radioactive, chemical, or biological material. •Compatibility. The capability of a system to be operated, maintained, and resupplied by persons wearing individual protective equipment, in all climates for which the system is designed, and for the period specified in the operational requirements document.