|Lieutenant Junior Grade|
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Lieutenant, Junior Grade is junior commissioned officer rank, senior to an Ensign but subordinate to a full Lieutenant. It has a ranking code of O-2 and is equivalent to a First Lieutenant in the Starfleet Marine Corps. The rank insignia consists of one full pip and one hollow pip.
Lieutenant JGs are most commonly billeted as Department Heads aboard a starship or starbase. Often, a Lieutenant may hold command of a team within a department - a security detail, or engineering team, for example - most commonly comprised of non-commissioned officers and enlisted personnel.
|Starfleet Officer Ranks|
|Ensign||Lieutenant JG||Lieutenant||Lieutenant Commander||Commander||Captain||Fleet Captain||Commodore||Rear Admiral||Vice Admiral||Admiral||Fleet Admiral|