Delegation of Authority:  A statement provided to the Incident Commander by the Agency Executive delegating authority and assigning responsibility.  The Delegation of Authority can include objectives, priorities, expectations, constraints, and other considerations or guidelines as needed.  Agencies may require written Delegation of Authority to be given to Incident Commanders prior to their assuming command on larger incidents.

Demobilization Unit: Unit within the Planning Section responsible for assuring controlled, orderly, safe and efficient demobilization of incident resources.

Demobilization Unit Leader: The person responsible for preparing the Demobilization Plan and schedule, ensuring an orderly, safe, and efficient movement of personnel and equipment from the incident.

Deputy:  A fully qualified individual who, in the absence of a superior, could be delegated the authority to manage a functional operation or perform a specific task.  In some cases, a Deputy could act as relief for a superior and therefore must be fully qualified in the position.  Deputies can be assigned to the Incident Commander, General Staff, and Branch Directors.  Deputies can also be utilized at the site support level, (e.g., EOC, PROC).

Department Operations Centre (DOC):  A group of senior staff and the facility within the department who coordinate the department's activities in support of the department's responsibilities and commitment to the emergency response.  DOCs interact with the overall EOC and their agency representatives or senior personnel at the scene (e.g., Fire Departments, Public Works Departments, etc.)

Director(s):  The ICS title for individuals responsible for supervision of a Branch at the Site Level.

Dispatch:  The implementation of a command decision to move a resource or resources from one place to another.

Dispatcher (DISP): The person responsible for notifying resources to assigned incidents

Dispatch Centre:  A facility from which resources are assigned to an incident.

Division:  Divisions are used to divide an incident into geographical areas of operation. A Division is located within the ICS organization between the Branch and the Task Force/Strike Team.  (See Group).  Divisions are identified by alphabetic characters for horizontal applications and, often, by floor numbers when used in buildings.

Division Supervisor (DIVS): The person responsible for supervising equipment and personnel assigned to a division. Reports to a Branch Director or Operations Section Chief.

Documentation Unit:  Unit within the Planning Section responsible for collecting, recording, and safeguarding all documents relevant to the incident.

Documentation Unit Leader (DOCL):  The person responsible for maintaining accurate and complete incident files, providing duplication services to incident personnel, and packing and storing incident files.

Dozer Boss (DOZB): The person responsible to lead a single bulldozer and attached personnel and is responsible for their safety on wildland and prescribed fire incidents.