Study reference

Law enforcement 10-codes & phonetic alphabet.

Tap a card to flip it. Copper marks the daily/common study set; indigo and forest green mark the rest of the local reference sheet.

Common / daily study Standard reference Standard reference

Radio reference

10-Codes

Meanings can vary between agencies. These definitions follow the supplied local reference sheet rather than a generic nationwide list.

Additional reference

Additional numbered codes

Extra dispatch/reference codes printed or handwritten on the supplied sheet.

Daily study

Law-enforcement phonetic alphabet

Tap a letter to reveal its phonetic word.