Petty officer first class

Petty officer first class (PO1) is a rank found in some navies and maritime organizations.

Canada[edit]

Petty officer, 1st class, PO1, is a Naval non-commissioned member rank of the Canadian Forces. It is senior to the rank of petty officer 2nd-class and its equivalents, and junior to chief petty officer 2nd-class and its equivalents. Its Army and Air Force equivalent is warrant officer (WO).

The French form of the rank is maître de 1re classe.

The rank insignia of the PO1 is a crown worn on both forearms of the Service Dress tunic, and on slip-ons on both shoulders of other uniforms. PO1s are generally initially addressed as "Petty Officer Bloggins" or "PO Bloggins", and thereafter as "PO", although in correspondence the full rank or abbreviation is used before the member's name. The full appellation "Petty Officer 1st-Class" or "PO1" in speech is generally used only when the "first-class" distinction be made, such as to distinguish between members with similar names but differing ranks, or on promotion parades.

Petty officer first class

United States

United States Navy
United States Coast Guard

PO1

Non-commissioned officer

Petty officer

OR-6

E-6

Chief petty officer

Petty officer second class

Staff sergeant (USA, USMC)
Technical sergeant (USAF, USSF)

Completed a period of time-in-rate (three years time-in-rate as a second-class petty officer, or two years if the second-class petty officer received a promotion recommendation of "early promote" (EP) on their latest periodic performance evaluation and the second-class petty officer's commanding officer authorizes a one-year time-in-rate waiver).