Halopedia Era UNSC.png
Reclaimer - H4.png

Petty Officer Third Class

From Halopedia, the Halo wiki

Petty Officer Third Class, abbreviated to PO3, is a enlisted rank in the United Nations Space Command Naval Command (NAVCOM) rank structure; including the UNSC Navy and Office of Naval Intelligence. It is preceded by Crewman, and subordinate to a Petty Officer Second Class.[1]



Work party lead.[1]


  1. ^ a b Halo: Official Spartan Field Manual - PART 8: UNSC ORGANISATION, NAVCOM Ranks, page 140-141