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United States. In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens.
Vessel emergency codes. In addition to distress signals like Mayday and pan-pan, most vessels, especially passenger ships, use some emergency signals to alert the crew on board. In some cases, the signals may alert the passengers to danger, but, in others, the objective is to conceal the emergency from unaffected passengers so as to avoid panic ...
The Emergency Response Guide is intended to give first responders (firefighters, police officers) prompt advice during the initial stages of an emergency, such as a fire or chemical leak resulting from a transportation accident, such as a train derailment or crash involving a truck.
Code blue: life-threatening medical emergency; Code brown: external emergency (disaster, mass casualties etc.) Code orange: evacuation; Code purple: bomb threat; Code red: fire; Code yellow: internal emergency; MET call: a medical emergency that is not cardiac or respiratory arrest
The MPDS codes allow emergency medical service providers to determine the appropriate response mode (e.g. "routine" or "lights and sirens") and resources to be assigned to the event.
Pan-pan calls may be made on the aircraft emergency frequency, but they are more often made on the frequency already in use, or another appropriate frequency. ICAO Annex 10, Volume V, ยง 4.1.3.1.1 states "the emergency channel (121.5 MHz) shall be used only for genuine emergency purposes".
The Emergency Alert System ( EAS) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable, satellite and broadcast television and both AM, FM and satellite radio.
Codes Standard System for the Identification of the Hazards of Materials for Emergency Response. The four divisions are typically color-coded with red on top indicating flammability, blue on the left indicating level of health hazard, yellow on the right for chemical reactivity, and white containing codes for special hazards. Each of health ...
Search-and-rescue response. Emergency beacons operating on 406 MHz transmit a unique 15-, 22-, or 30-character serial number called a hex code. When the beacon is purchased, the hex code should be registered with the relevant national (or international) authority.
ISO 7010. ISO 7010 is an International Organization for Standardization technical standard for graphical hazard symbols on hazard and safety signs, including those indicating emergency exits. It uses colours and principles set out in ISO 3864 for these symbols, and is intended to provide "safety information that relies as little as possible on ...