scope:

This instruction provides the staff and key agencies of higher headquarters, installations, and unit commanders with the policies, guidance, structure, and roles and responsibilities to prepare for, prevent, respond to, recover from, and mitigate threats to their mission. This instruction also includes guidance to plan, conduct, and evaluate Air Force EM exercises.

NOTE: For differentiation purposes, the terms "CBRN" and "CBRNE" are defined below and in Attachment 1.

CBRN. Operations that include chemical, biological, radiological, and nuclear materials, either individually or in combination. Collectively known as weapons of mass destruction (WMD), CBRN replaces "Nuclear, biological, or chemical (NBC)" when used in reference to operations or incidents limited to WMD issues. Toxic Industrial Chemicals or Toxic Industrial Materials (TIC/TIM) and Hazardous Materials (HAZMAT) are considered part of the "C" in "CBRN".

CBRNE. Operations or incidents involving chemical, biological, radiological, nuclear, and high-yield explosives, or materials, either individually or in combination. "CBRNE" is used whenever reference is not being made to "NBC-only" operations or incidents.