I was not able to find out where to enter measurements for the uniform, so I called the uniform office at the Academy. The person I spoke to assured me that they would take the uniform measurements when they get there for BCT, so they only need the t-shirt sizes now. You can only enter the t-shirt size in the portal, but page 5 in the Appointee Handbook indicates that you must enter uniform measurements, as well. This is incorrect. Just FYI!