NFPA Standard Explorer

Pre-incident planning framework that helps departments capture critical building/site information in a usable format for first-due decision-making and incident action planning.

The first five minutes are a prediction problem: crews need water supply, access, hazards, and life safety priorities fast. Good preplans turn unknowns into mapped decisions before the alarm, reducing improvisation under stress.

• Preplan scope and data collection concepts (high level)
• Operationally useful plan format and update cycle concepts
• Key site features: access, water supply, hazards, occupants (conceptual)
• Integration with incident command decision-making (high level)
• Special occupancies and high-risk process considerations (conceptual)
• Information sharing, review, and continuous improvement concepts

• Target hazard preplans (high-rises, warehouses, chemical sites, campuses)
• Hydrant/water supply decision planning for first-due engines
• Mapping shutoffs, hazards, and access constraints for quicker size-up
• Mutual aid alignment: shared maps, common symbols, common updates

• Preplans are binder-only (they must be quick to retrieve and act on).
• One walkthrough is enough (sites change; plans must be maintained).
• Preplans replace size-up (they improve it by reducing unknowns).

• Use a 1-page ‘first-due quick sheet’ + deeper annex pages when needed
• Prioritize 10–20 target hazards first, not everything
• Add ‘what changes the first-due plan’ triggers (construction, access changes, system impairments)
• Integrate preplan review into training: tabletop → walkaround → radio size-up drills

Explore operational terms and concepts associated with NFPA 1620.