Specific Area Message Encoding in the context of Communications protocol

Shelter-in-place (SIP; also known as a shelter-in-place warning, SAME code SPW) is the act of seeking safety within the building one already occupies, rather than evacuating the area or seeking a community emergency shelter. The American Red Cross says the warning is issued when "chemical, biological, or radiological contaminants may be released accidentally or intentionally into the environment" and residents should "select a small, interior room, with no or few windows, taking refuge there."

An Amber alert (alternatively styled AMBER alert) or a child abduction emergency alert (SAME code: CAE) is a message distributed by a child abduction alert system to ask the public for help in finding abducted children. The system originated in the United States.

The Amber alert was created in reference to 9-year-old Amber Rene Hagerman, who was abducted in Arlington, Texas, on January 13, 1996, and found murdered four days later. Alternative regional alert names were once used; in Georgia, "Levi's Call" (in memory of Levi Frady); in Hawaii, "Maile Amber Alert" (in memory of Maile Gilbert); in Arkansas, "Morgan Nick Amber Alert" (in memory of Morgan Nick); in Utah, "Rachael Alert" (in memory of Rachael Runyan); and in Idaho, "Monkey's Law" (in memory of Michael “Monkey” Joseph Vaughan). Although the system was named for Hagerman, "AMBER" officially stands for "America's Missing: Broadcast Emergency Response", an example of a backronym.