NIMS integrates existing best practices into a consistent, nationwide, systematic approach to incident management that is applicable at all levels of government, nongovernmental organizations , and the private sector, and across functional disciplines in an all-hazards context.

In addition to Adoption, five major components make up this systems approach: Preparedness, Communications and Information Management, Resource Management, Command and Management, and Ongoing Management and Maintenance.

The components of NIMS were not designed to stand alone, but to work together in a flexible, systematic manner to provide the national framework for incident management.

Detailed information about each of these components may be found in the DHS/FEMA National Incident Management System document (December 2008) which may be found on the FEMA NIMS Resource Center website here: http://www.fema.gov/emergency/nims/