What does LUNAR stand for in firefighter mayday communications?

• A. Location, Unit, Name, Air supply, Resources needed for rescue
• B. Location, Unit, Name, Air supply
• C. Location, Unit, Name, Air
• D. Location, Unit, Name, Water supply

Answer: (A)

LUNAR is a structured Mayday transmission used so responders can quickly grasp what’s happening and respond effectively. Each part communicates a critical piece of information: Location tells rescuers exactly where the firefighter is, Unit identifies which crew or company is reporting, Name gives the individual’s identity for accountability, Air supply communicates how much air remains or the urgency of the air situation, and Resources needed for rescue specifies what additional help or equipment are required to carry out the rescue. This combination ensures the incident command can make rapid, informed decisions and deploy the right resources.

The other options miss one or more essential elements. They omit the explicit need to state resources required for the rescue, or they shorten “air supply” to something less precise, or they include an irrelevant item like water supply.