In ICS, an incident command post (ICP) is the field location at which the primary command function is executed (JIBC, 2015). In ESS, the ICP or site-level, would be where ESS is provided to evacuees, e.g., near the incident, on a bus where evacuees are being registered for ESS. In a larger incident, the site would be the reception centre and/or the group lodging facility. When the site level requires support or guidance, emergency operations centre (EOC) site-support levels may also be activated. See the following figure for features of each level in an ESS response structure, adapted from the JIBC (2011).
Figure 2-6: ESS Response Structure Level Features
The following figure shows the multi-level response structure for an ESS response.
Figure 2-7: ESS Multi-Level Response Structure
In a larger response, the ESS Director would likely be located at the Local Authority EOC as the ESS Branch Coordinator within the Operations Section.