UNAT first explained that under the new reimbursement regime, an expense would be recoverable if: (i) it’s for tuition; (ii) it is paid directly to the school; and (iii) it is certified by the school as being necessary for attendance. UNAT rejected the staff member’s claim that because another UN entity would apply a rule more favorably to his case, that entity’s interpretation should trump over the one given by the organization where he actually works. Second, UNAT disagreed with the Administration’s approach that if an item in a category of fees was inadmissible, then the Administration...