Change from Per Diem Allowance to Actual and Necessary Subsistence Expenses. A. Advance Authorization - An employee scheduled to travel in an area for which a per diem allowance is prescribed may request advance authorization for travel on the basis of actual and necessary subsistence expenses. Any such request will normally be approved when the supporting justification showing that the unusual and exceptional circumstances for the request meets Department-wide guidelines.
Change from Per Diem Allowance to Actual and Necessary Subsistence Expenses. Advance Authorization - An employee scheduled to travel in an area for which a per diem allowance is prescribed may request advance authorization for travel on the basis of actual and necessary subsistence expenses. Any such request will normally be approved when the supporting justification showing that the unusual and exceptional circumstances for the request meets Department-wide guidelines. Post Approval - The Department will normally authorize, on a post-approval basis, reimbursement for actual and necessary subsistence expenses allowable under law, rules or regulations, if the employee can justify that prudent expenses required by the ordered travel exceeded the prescribed per diem rate. This provision applies only to travel involving assignments of 30 calendar days or less.
