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...codes are lists of short coded messages -- 10-codes, 9-codes, signals, Q-codes, and the like -- which are used in voice radio communications for three mai ...rely mentioned, and often not obvious even to regular users. When using a brevity code on the air, a police officer, paramedic, or street sweeper doesn't nee

[[:Category:Brevity Codes|Brevity Codes]] ''(by State)''<br/> ...itary|Canada&nbsp;Military]] ''(by Province)'', [[:Category:Japan Military|Japan&nbsp;Military]], [[:Category:Mexico Military|Mexico&nbsp;Military]], [[:Cat