*on Tuesdays only, uniform code flag is military service uniform.*
If you are prior enlisted: you can wear your uniform, any branch.
If you are ROTC Contracted:
Army: You can wear US Army name tapes all day only as a Junior and Senior. Everyone wears them to Army ROTC Class and Mil Lab.
Navy: NWU allowed to the Commissioning Seniors only.
USMC: If you have completed OCS you can wear your uniform
Air Force: Unsure but I think when you get a Field Training slot, you can wear that uniform.