LUNAR is an acronym used in MAYDAY situations. Which of the following best completes its components?

• A. Location, Unit ID, Name/Designation, Air/Assignment, Resources Needed
• B. Location, Unit ID, Name, Air, Equipment Needed
• C. Location, Unit Identifier, Name/Designation, Air/Assignment, Resources Needed
• D. Location, Unit ID, Name/Designation, Ground Assignment, Resources Needed

Answer: (A)

In a MAYDAY, you communicate five essential pieces of information to incident command: where you are, who you are, who you are as an individual, your air status, and what you need to continue the rescue. Location tells responders exactly where to find you. Unit ID identifies which company or unit is in trouble, avoiding confusion with other crews. Name/Designation provides the individual’s identity, supporting accountability and rapid confirmation of who’s in need. Air/Assignment conveys your breathing-air status and, when paired, your current task or role, helping rescuers gauge urgency and plan the next steps. Resources Needed lists the specific support or equipment required to complete the rescue, enabling quick allocation of assets. The option that aligns with these five elements in this order—Location, Unit ID, Name/Designation, Air/Assignment, Resources Needed—matches the standard MAYDAY reporting structure. Other options alter or omit elements (like Equipment vs Resources or a Ground Assignment) that reduce clarity and could delay rescue.