Summary:
The SCEMD plans can be found on its website at https://www.scemd.org/em-professionals/plans/emergency-operations-plan/. There is a link to Annex 17 on Animal and Agriculture Emergency Response.
On page 2 of Annex 17 (also attached to this page as a pdf), the following is stated:
II. PURPOSE
A. Coordinate plans, policies, actions, and resources of state and local governments to minimize impacts of emergencies on agribusiness and the economy.
B. Coordinate resources and actions needed to protect agriculture and animal health and safety, and protect public health and safety related to agriculture and animals.