- ICC 500
- A building standard for safe rooms and tornado shelters. Together with the FEMA P-320 guidance, it defines a true safe room. See ch. 18.
- ICE contacts (In Case of Emergency)
- Contacts saved in the phone under the name "ICE" so first responders know whom to call. See ch. 1.
- Inverter
- A device that converts the direct current from a battery into household outlet current. It must handle the total of what you plug in, including the startup surge of motors. See ch. 23.