This publication standardizes air-to-air, air-to-surface, surface-to-air, surface-to-surface, maritime air, and maritime-to-maritime brevity codes regardless of communication medium (voice/chat), and brevity codes (abbreviations) specific for use in tactical chat. The scope is limited to brevity codes used in multi-Service operations. All Services agree to these brevity code meanings. These brevity codes have been forwarded to the North Atlantic Treaty Organization (NATO) for inclusion or modification of the NATO Allied Procedural Publication (APP)-7, Joint Brevity Words and other allied communications publications.