Radiation Emergency Shelter and Decontamination Guide
Understand the protective priorities for a radiation emergency: get inside, remain sheltered, and follow official information.
Use the three protective priorities
During a radiation emergency, the basic message is: get inside, stay inside, and stay tuned. Move into the nearest sturdy building rather than trying to outrun a plume. Once inside, go to a basement or the middle of the building, away from exterior walls and the roof.
Improve shelter quickly
Close and lock windows and doors. Turn off fans, air conditioners, and forced-air systems that bring outside air in when officials recommend it. Bring pets inside if doing so does not delay shelter. Keep a radio, phone alerts, water, food, medications, and basic supplies with you.
Reduce contamination after being outside
Remove the outer layer of clothing carefully and place it in a sealable bag away from people and pets. Shower gently with soap and water if available; do not scrub harshly or use conditioner, which can bind material to hair. If a shower is unavailable, wipe exposed skin with a clean wet cloth.
Follow official directions
Public officials may direct people to stay sheltered, evacuate, seek monitoring, or take other steps based on the event. Do not take potassium iodide unless a public-health or medical authority specifically instructs you; it protects only the thyroid from certain radioactive iodine exposures and is not a general radiation antidote.
Plan for communication
Enable local emergency alerts and identify an interior shelter location at home, work, and school. Include spare medications, accessible communication tools, and plans for anyone who needs mobility or caregiver support.
Sources
Ready.gov, “Radiation Emergencies” (ready.gov/radiation); CDC radiation-emergency guidance.
Quick checklist
- Learn the local hazard and official alert channels.
- Choose safe actions, routes, and backup options before an emergency.
- Keep essential supplies accessible and review the plan with everyone involved.
- Follow current instructions from emergency and public-health authorities.
Frequently asked questions
How often should I review this plan?
Review it at least twice a year and after a move, household change, major equipment change, or local emergency.
Should official instructions override this guide?
Yes. Conditions vary, so current directions from emergency responders, utilities, public-health agencies, and local authorities take priority.