COOP (Continuity of Operations Plan)

Continuity of Operations, as defined in the National Security Presidential Directive-51/Homeland Security Presidential Directive-20 (NSPD-51/HSPD-20) and the National Continuity Policy Implementation Plan, is an effort within individual executive departments and agencies to ensure that Primary Mission Essential Functions continue to be performed during a wide range of emergencies, including localized acts of nature, accidents and technological or attack-related emergencies.

https://www.fema.gov/policy-plans-evaluations

NENA Succession Planning Information Document NENA-INF-010