Lieutenant, junior grade

The rank of lieutenant junior grade, sometimes abbreviated to lieutenant jg or junior lieutenant, a junior officer grade used by Starfleet that was positioned between an ensign and a full lieutenant.
During certain points in its history, Starfleet discontinued the rank of lieutenant junior grade, promoting ensigns to the full grade of lieutenant. This was the case in the mid 2270s; however, in the 24th and 25th century, the rank of lieutenant junior grade was in effect. 
Certain Starfleet personnel may be granted this rank upon promotion from certain post-graduate schools, such as Starfleet Medical Academy or the Starfleet Diplomatic Annex.
Category:Military ranks
Category:Starfleet ranks