Lieutenant, junior grade

Lieutenant, Junior Grade is a junior commissioned officer rank of the UNSC Navy, equal in rank to First Lieutenant in the UNSC Marine Corps, UNSC Air Force, and UNSC Army.

Style of address

 * Lieutenants, Junior Grade are referred to as "Lieutenant" in informal settings.
 * Lieutenant, Junior Grade can be abbreviated as "Lieutenant (J.G.)" or "LTJG".