I seem to recall reading an NCAAW interp that the sleeves had to end above the elbow now.
Update: From the 12/2 (or 12/4?) conference call:
(3) Undershirts. Undershirts are considered to be part of the game jersey and must be a color similar to that of the game jersey and may not extend below the elbow. As with the game jersey, no visible manufacturerโs logo is permitted on the undershirt.