In the event that chemical or radiological hazards cause officials to advise people in a specific area to "shelter-in-place" in a sealed room households should have a room they have selected for this purpose. The best room is one with as few windows and doors as possible. A large room, preferably with a water supply, is desirable—something like a master bedroom that is connected to a bathroom.

Contact your workplaces, your children's schools, nursing homes where you may have family and your local town or city officials to find out what their plans are for "shelter-in-place."
Find out when warning systems will be tested. When tested in your area, determine whether you can hear or see sirens and/or warning lights from your home.

Develop your own family emergency plan so that every family member knows what to do. Practice it regularly.

Assemble a disaster supplies kit that includes emergency water and food supplies.