higher dollar) of the applicable maximum per diem rate. However, subject to your agency’s policy, a lesser amount may be authorized. §301-11.304 What if my expenses are less than the authorized amount? When authorized actual expense and your expenses are less than the locality per diem rate or the authorized amount, reimbursement is limited to the expenses incurred. §301-11.305 What if my actual expenses exceed the 300 percent ceiling?