Where do I Turn in my Taris Commendations for Republic?
The main town in Taris, the very first one you come across after you land is where you will be able to turn in your Taris Commendations. The NPC's name is Sergeant Mogg. Sergeant Mogg is located on the far eastern end of town in the long strip of NPC vendors. If you run through the area and mouse over each NPC you can't miss him.
Note: There is NO Weapon Commendation Vendor for Taris, the only thing you are able to spend these commendations on are Equipment.
As well as Sergeant Mogg, players are also able to trade in their Taris Commendations in at the Republic Fleet. If you decide to turn them in at the Republic Fleet then the NPC you will be looking for there is called Corporal Daz.