Final answer:
The Incident Command System (ICS) is the National Incident Management System (NIMS) component that enables effective and efficient command and coordination. It is flexible and scalable, allowing for management of incidents of any size or complexity.
Step-by-step explanation:
The National Incident Management System (NIMS) component that enables effective and efficient command and coordination regardless of the size, complexity, or scope of the incident is the Incident Command System (ICS).
ICS provides a flexible process and system to help save lives and stabilize the situation. It is designed to be scalable and adaptable, allowing for effective management of incidents ranging from small local events to large national emergencies.