Day vs. D/D Tuition & Fee Charges Posted on September 9, 2022 From a student’s prospective, there is no difference between day and D/D charges. These day charges are categorized as such strictly for college accounting purposes. If your bill shows D/D charges, they are treated as regular day charges for billing purposes. However, D/D charges may not be eligible for certain types of tuition and fee waivers. Author Dana Lococo View all posts