Silver Alert has been implemented in some states in the US following the success of the Amber Alert program, which broadcasts media bulletins and posts lookout information on highway signs when a child is reported missing. A Silver Alert is a public notification system to broadcast information about missing persons, especially seniors with Alzheimer's Disease, dementia or other mental disabilities, in order to aid in their return.

To broadcast information about missing persons, Silver Alerts use a wide array of media outlets, such as commercial radio stations, television stations, and cable TV. Silver Alerts also use variable-message signs on roadways to alert motorists to be on the lookout for missing seniors. In cases in which a missing person is believed to have gone missing on foot, Silver Alerts have used reverse 911 systems to notify nearby residents of the neighborhood surrounding the missing person's last known location.

In majority of the US states, Project Lifesaver, a new transmitting device, the size of a wrist watch, is worn by the elderly especially those with mental disabilities like the Alzheimer's disease. This device is introduced to help the police officers track the missing elderly persons in case they wander. Watch the video below: