Air chief marshal (Australia)

Air chief marshal
Rank Insignia for Air Chief Marshal
RAAF ACM Command Flag (CDF)
Country	Australia
Service branch	Royal Australian Air Force
Abbreviation	ACM
Rank group	Air officer
Rank	Four-star
Pay grade	O10
Formation	1965
Next higher rank	Marshal of the RAAF
Next lower rank	Air marshal
Equivalent ranks	Admiral (RAN) General (Army)

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Air chief marshal (abbreviated as ACM) is the highest active rank of the Royal Australian Air Force and was created as a direct equivalent of the British Royal Air Force rank of air chief marshal. It is also considered a four-star rank. The only time the rank is held is when the Chief of the Defence Force is an Air Force officer.

Air chief marshal is a higher rank than air marshal and is a lower rank than Marshal of the Royal Australian Air Force, which has only ever been awarded as an honorary rank. Air chief marshal is a direct equivalent of admiral in the Royal Australian Navy and general in the Australian Army.