MAYDAY signals grave and imminent danger requiring immediate assistance. Its radio priority depends on a real distress condition and must be followed by the information needed for action. Distinguish the signal’s historical proposal from international adoption, and use current operating procedures for actual transmissions.
- FamilyTool
- Category of its source unitProtocols & Standards
- DomainRisk, Crisis & Safety
What these mean
Editorial orientation · Family
Tool
In this series, Tool names the editorial family primarily used to act on, examine, measure or organize communication. It includes instruments, methods, practices, protocols, codes and institutional arrangements. Membership does not certify effectiveness, portability or safe use in every setting.
Editorial orientation · Category
Protocols & Standards
Defines shared rules, standardized sequences or requirements for actions and exchanges. Its practical contribution is an explicit basis for coordinated use or conformity within a specified scope.