ATP 3-11.42 governs domestic chemical, biological, radiological, and nuclear response operations and support to civil authorities.
View ATP 3-11.42 on armypubs.army.mil
It covers the domestic response framework, CBRN response enterprise, operational phases, assistance requests, command relationships, and state, local, and tribal coordination. It states that Force package 1 must be prepared to deploy within 24 hours of notification and Force package 2 within 48 hours of notification.
Applies to: This publication has been prepared under our direction for use by our respective commanders and other commands as appropriate.
The Phase IIIOperate phase begins when DOD or NG forces begin executing mission assignments within the operational area. (paragraph 1-59)
DOD accepts mission assignments as RFAs, which become mission assignments only after being received by the Office of the Executive Secretary of DOD, then forwarded to the Assistant SECDEF for Homeland Defense and Global Security and the Joint Staff operations directorate of a joint staff (J-3) for validation and order processing, and finally to SECDEF for approval. (paragraph 1-59)
Force package 1 must be prepared to deploy within 24 hours of notification. Force package 2 must be prepared to deploy within 48 hours of notification. (paragraph 3-55)
By definition, DSCA operations are conducted only in the U.S. homeland. (paragraph 1-13)
Tribal governments usually work with the state, but they can seek federal government support directly as sovereign entities. (paragraph 3-38)