Which ICS function is responsible for the approval of ordering additional resources?

The responsibility for approving the ordering of additional resources falls under the Command Function of the Incident Command System (ICS). The Command Function is primarily tasked with overall management of the incident and is responsible for making key strategic decisions, which includes determining the need for additional resources based on the evolving situation. The incident commander, who is a part of this function, assesses the needs of the incident, balances available resources, and makes decisions about resource allocation and acquisition.

While the Planning Function is critical for developing strategies and tracking resource availability, it is the Command Function that ultimately approves the ordering process. Understanding the hierarchical nature of ICS helps clarify why this decision-making authority is specifically vested in the Command Function, as it reflects the leadership necessary for effective incident management.