Fire Attack Line

What Is Fire Attack Line?

A fire attack line is the charged hoseline — typically 1¾ to 2½ inches in diameter — advanced by a crew to apply water directly onto a fire, as distinct from a supply line that moves water from a hydrant or tender to the pump.

Why Fire Attack Line Matters on the Fireground

Choosing too small a line under-delivers flow for the fire's size, while too large a line becomes difficult to maneuver and can slow interior advancement — attack line sizing is one of the first tactical decisions that shapes the whole operation.

Relevant NFPA Standards

• NFPA 1960: Standard for Fire Hose Connections, Spray Nozzles, Manufacturer's Design of Fire Department Ground Ladders, Fire Hose, and Powered Rescue Tools
• NFPA 1930: Standard on Fire and Emergency Service Use of Thermal Imagers, Two-Way Portable RF Voice Communication Devices, Ground Ladders, Rescue Tools, Fire Hose, and Fire Hose Appliances

Field Procedures & Tactical Steps

1. Select line diameter based on fire size, occupancy, and available staffing to handle nozzle reaction.
2. Stretch the line to the entry point with enough working length, avoiding sharp bends or kinks.
3. Charge the line and bleed air before making entry, confirming adequate pressure at the nozzle.
4. Advance in coordination with ventilation and search crews, communicating progress to command.

Common Context & Application

Selected and stretched during initial size-up based on occupancy type, fire size, and staffing available to handle the line's reaction force.

Frequently Asked Questions about Fire Attack Line