The application shall be accompanied by full documentation of the fees and expenses, including the cost of any study, analysis, audit, engineering report, test, project, or similar matter, for which an award is sought. A separate itemized statement shall be submitted for each professional firm or individual whose services are covered by the application, showing the hours spent in connection with the proceeding by each individual, a description of the specific services performed, the rates at which each fee has been computed, any expenses for which reimbursement is sought, and the total amount paid or payable by the applicant or by any other person or entity for the services provided. Under § 625.25 of this part, the presiding officer may require the applicant to provide vouchers, receipts, logs, or other substantiation for any fees or expenses claimed.