
Achief petty officer (CPO) is a seniornon-commissioned officer in many navies and coast guards, usually abovepetty officer.
Chief petty officer is the second highest non-commissioned rank in theRoyal Australian Navy.
There are two chief petty officer ranks in theRoyal Canadian Navy. Achief petty officer 2nd class (CPO2) (premier maître de deuxième classe orpm2 inFrench) is equivalent to amaster warrant officer in the Army and Air Force, andchief petty officer 1st class (CPO1) (premier maître de première classe orpm1) is equivalent to a chief warrant officer in the Army and Air Force. In spoken references, chief petty officers may be addressed as "chief" but are never addressed as "sir".
A chief petty officer inIndian Navy is ajunior commissioned officer. This rank is equivalent tonaib subedar inIndian Army andjunior warrant officer in theIndian Air force. The two highest enlisted ranks are master chief petty officer second class (MCPO II), equivalent to subedar/warrant officer, and master chief petty officer first class (MCPO I), equivalent to subedar major/master warrant officer in the Indian Army and Indian Air Force respectively.
Fleet chief petty officer is a commissioned and gazetted rank in thePakistan Navy above chief petty officer and belowmaster chief petty officer. It is equivalent to thePakistan Air Force warrant officer and thePakistan Army subedar.[1]
In thePhilippine Navy, the rank of chief petty officer, is equivalent tomaster sergeant in thePhilippine Marine Corps andPhilippine Air Force.[2]
In theRoyal Navy, the rank of chief petty officer comes above that ofpetty officer and below that ofwarrant officer class 2. It is the equivalent ofcolour sergeant in theRoyal Marines, colour sergeant orstaff sergeant in theArmy, andflight sergeant in theRoyal Air Force.
Chief petty officer is an E-7enlisted rank in theU.S. Navy andU.S. Coast Guard, just abovepetty officer first class and belowsenior chief petty officer. Chief petty officers are classified as seniornon-commissioned officers. The grade of chief petty officer was established on April 1, 1893, for the U.S. Navy.[3] TheU.S. Congress first authorized the U.S. Coast Guard to use the promotion to chief petty officer on 18 May 1920.[4]
Unlike petty officer first class and lower rates, advancement to chief petty officer in the U.S. Navy not only carries requirements of time in service, superior evaluation scores, and specialty examinations, but also carries an added requirement ofpeer review. A chief petty officer can only advance after review a selection board of serving master chief petty officers, in effect "choosing their own" and conversely not choosing others.[5]
...commemorating the establishment of the rate of Chief Petty Officer (CPO) in 1893.