ICS

Glossary

Common terminology is the first of the NIMS management characteristics for a reason. Agree these words before the incident.

TermMeaning
Incident Commander (IC)The one person with overall authority for the incident
Unified command (UC)Several parties with authority sharing command through one set of objectives and one plan
Command StaffPublic Information, Safety and Liaison Officers, plus advisors such as counsel, reporting to the IC
General StaffThe section chiefs: Operations, Planning, Logistics, Finance/Admin, and Intelligence/Investigations if separate
SectionA major functional area of the organization, led by a chief
Branch, division, groupSubdivisions of a section: branch by function or area, division by area, group by function
Task forceMixed resources under one leader with shared communications
Strike teamResources of the same kind and type under one leader
Operational periodThe time set for carrying out one set of objectives, as written in the IAP
Incident Action Plan (IAP)The written plan for one operational period
ObjectiveAn outcome with a measure and a time
Span of controlThe number of people one supervisor manages
Incident command postWhere command operates. In cyber, usually the war room or command bridge
Check-inRecording that a person has joined the incident, with their assignment
Out of bandCommunications that do not depend on systems the attacker may control
ContainedAgree the definition in advance. PIVTR-D uses: network, process and log channels all show attacker activity stopped
DemobilizationThe orderly release of people and resources
Transfer of commandHanding command to another person by briefing, announced and logged
Three CsCoordinate, communicate, control: the aims Google's ICS-based system organizes around
Communications leadGoogle's name for the role NIMS calls the Public Information Officer
Operations leadGoogle's name for the role NIMS calls the Operations Section Chief
Incident management team (IMT)A rostered group of ICS-qualified people who deploy to manage an incident
AAR/IPAfter-action report and improvement plan, the review format of the Homeland Security Exercise and Evaluation Program
Emergency operations center (EOC)Where staff coordinate support to incident command and manage wider consequences. In cyber, the crisis management team
Multiagency coordination group (MAC group)Executives who set policy and priorities across incidents. In cyber, the executive decision group
Joint information system (JIS)The processes that keep public information consistent across every organization involved
Joint information center (JIC)Where communicators from each organization work together
Resource typingDescribing a resource by kind and by capability, so requests and offers match
Position task bookThe tasks a person must show they can do to qualify for an incident position
Mutual aidSharing resources between organizations on terms agreed in advance
Common operating pictureOne shared, timestamped view of the incident that every level works from