Cass County EMA is responsible for county emergency planning requirements developed by the Iowa Homeland Security and Emergency Management Division under Chapter 29C.

The Office of Emergency Management is governed by Chapter 29C State Code of Iowa and enforced by the Cass County Emergency Management Commission consisting of Chair and Vice Chair positions selected from the commission members which consist of the Mayors or their designated representative of the corporate cities within Cass County, a Board of Supervisor member, and the Cass County Sheriff.

Cass County EMA is responsible for county emergency planning requirements developed by the Iowa Homeland Security and Emergency Management Division under Chapter 29C and works in cooperation with the emergency response agencies within Cass County to develop emergency response planning, response and recovery guidance, and serves as the initial contact and liaison for Iowa Homeland Security issues at the state and federal levels.