2. Emergency Operations Center
'Emergency Operations Center' is the organization that supports (and does not command) the on-scene response during an escalating incident.
Explanation:
Emergency Operations Center (EOC) is activated to support the on-scene response during an escalating incident by relieving the burden of external coordination and securing additional resources.
It is a physical location staffed with personnel trained for and authorized to represent their agency/discipline.
It is also equipped with mechanisms for communicating with the incident site and obtaining resources and potential resources.
Source: uky.edu