What Are Mutual Aid Agreements?
Mutual aid agreements are formal arrangements between EMS agencies, fire departments, and other emergency services that allow them to share resources during large-scale incidents or when local resources are overwhelmed. These agreements ensure that no community is left without emergency medical care because their primary agency's resources are fully committed.
Types of Mutual Aid
Mutual aid can be structured in several ways:
- Automatic aid: Resources are dispatched automatically based on geography or call type, regardless of jurisdictional boundaries. Common in suburban and urban areas with neighboring agencies.
- Mutual aid on request: An agency requests assistance from a neighboring agency when their own resources are depleted. The request goes through dispatch or an incident commander.
- Regional compacts: Multiple agencies in a region sign comprehensive agreements that define resource sharing, reimbursement, liability coverage, and communication procedures.
- Statewide mutual aid: State-level systems like EMAC (Emergency Management Assistance Compact) facilitate resource sharing across state lines during declared emergencies.
What Mutual Aid Agreements Cover
Well-written mutual aid agreements address several critical issues. They define which resources can be requested and deployed, establish command structures when multiple agencies are operating together, specify communication protocols and radio interoperability requirements, clarify liability and workers' compensation coverage for deployed personnel, outline reimbursement procedures for costs incurred, and set credentialing standards to ensure that responding providers are qualified to deliver care in the receiving jurisdiction.
What New Providers Should Know
As a new EMS provider, understand your agency's mutual aid agreements. Know which neighboring agencies you may work alongside and familiarize yourself with their radio systems, protocols, and operational procedures. During mutual aid responses, communication and coordination are the biggest challenges. Follow the incident command structure, identify yourself clearly when communicating with unfamiliar units, and operate within your certification level and your home agency's protocols unless specifically directed otherwise by the incident commander.
Mutual aid response is tested on the NREMT exam under EMS Operations. Questions may focus on incident command structure during multi-agency responses, the role of the EMS provider within a unified command, and communication protocols when working with unfamiliar teams.