Template:Rank Infobox Petty Officer Third Class is the fourth enlisted rank of the UNSC Navy and is the lowest rank of non-commissioned officer. It is equal in rank to Corporal in the UNSC Marine Corps.
In informal settings, Petty Officers Third Class are typically called "Petty Officer".
In the UNSC Navy, enlisted personnel are referred to by their rating and rate (rank). Mentioned ratings at the same pay grade as Petty Officer Third Class are listed below:
- Technician Equivalent:Tech Officer Third Class
- Personnel: Sam Marcus