Shelter-in-place
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Go inside when instructed and choose the shelter location for the specific hazard. An airborne chemical release, tornado and radiation event need different shelter choices. Follow the official notice about room location, ventilation and when to leave.
Take it with you. Verify locally.
Downloads open without signup. External references are published material, not live instructions. Save them before an outage.
In immediate danger, contact local emergency services. Current instructions for your location take priority.
Do now.
- 01
Identify the hazard
Read the actual shelter instruction and affected area.
- 02
Choose the correct room
Use an interior low room for tornadoes, a basement or central area for fallout, and the room specified for a chemical event.
- 03
Bring immediate essentials
Take people, pets, medicines, phone power and a radio without delaying shelter.
- 04
Stay informed
Remain until officials advise otherwise, unless fire or another immediate danger makes the building unsafe.
Next steps.
Plan safe rooms for the hazards in your area and keep an alert source that works during outages.
Watch for.
Do not apply chemical room-sealing instructions to every hazard or remain in a burning building.
Sources & context.
Original Osprey Zero summary of the references below. U.S.-based guidance unless noted; check authorities where you are. This page is not a live alert.
Updated 2026-10-02. Recheck official instructions during an active event.