In specific instances, an evacuation or moving to a civilian shelter or designated place is more dangerous than remaining where you are, such as with short- or no-notice emergencies, including hazardous materials events. In these instances, you may be directed to shelter-in-place. Sheltering-in-place means to take temporary protection in a structure or vehicle.
Installation procedures designate which responsible party or office will order personnel to shelter-in-place and for how long the order is expected to be in effect. Each installation is responsible for developing Shelter-in-Place Management Teams in designated high-risk or high-occupancy buildings or areas. You should plan ahead by having an emergency supply kit with needed food and supplies in the locations you spend most of your time.