RESPONSE-DEPOT / FIELD TOOLS
ICS Quick Reference
Fast, mobile-friendly reminders for common incident management concepts.
Command and coordination
Incident objectives
Incident objectives establish the desired outcomes for an operational period. They should guide strategies, tactics, resource assignments, and performance assessment.
Unified Command
Unified Command enables agencies with jurisdictional authority or functional responsibility to jointly establish incident objectives and strategy while maintaining their respective authorities.
Span of control
Effective span of control depends on incident conditions, complexity and available support. ICS training commonly describes three to seven subordinates, with five as an optimal guideline.
Transfer of command
Use a clear briefing, confirm the effective time of transfer, communicate the change to affected personnel, and ensure pending actions and safety issues are understood.
Planning and documentation
Incident Action Plan (IAP)
An IAP communicates incident objectives, operational assignments and supporting information. The level of detail and format should match incident complexity and agency requirements.
ICS 201 — Incident Briefing
Commonly used to provide incident situation, current actions, organization and resources information during initial response or transfer of command.
ICS 214 — Activity Log
Used to document significant activities and events. Follow official form instructions and your agency's documentation and records requirements.
Operational period
A defined period for executing a set of operational actions. Duration is established by incident command based on the incident's needs.
Field reminders
- Confirm life-safety priorities and evolving hazards.
- Review objectives, authorities and assignments before acting.
- Communicate material changes through the chain of command.
- Document decisions, resources and outstanding follow-up actions.
- Prepare a deliberate handoff when personnel or operational periods change.
Official reference: FEMA ICS Resource Center. Use current agency-approved doctrine and forms.
Supplemental educational reference only. Not an official FEMA product or operational directive. Verify against current doctrine and incident-specific instructions.