Answer:
An Incident Commander's scope of authority is derived from existing laws, agency policies, and/or through a delegation of authority from the agency administrator or elected official.
Step-by-step explanation:
Delegation of authority is the process of conceding authority for the performance of specific functions.
This process is issued by the principal elected officer, executive director or agency administrator in writing or verbally.
It is important to note that the delegation of authority admits the incident commander to appropriate the command and does not discharge the granting authority from ultimate responsibility for the occurrence.