When ordered to shelter-in-place:
- Bring family / friends and pets into the pre-selected room.
- Access the emergency supply kit.
- Close and lock all windows and doors. Seal the opening at the bottom of the door with towels if possible.
- Turn off heating, ventilating and air conditioning systems (HVAC).
- Turn off vent fans and any other device that moves air. An exception to this might be an air purifier incorporating high-efficiency particulate air (HEPA) filters.
- Seal windows, doors, and vents with pre-cut plastic and duct tape. Tape all edges down all the way around.
- Account for everyone.
- Notify family or friends of your location. After this, do not use the telephone so that resources will be available for use by emergency responders.
- Monitor radio, TV and internet (if possible) for updates.
- Remain sheltered in place until told that it is safe to go outside or until told to evacuate.