41 CFR § 301-11.10 - Reimbursement for prepaid lodging expenses.

If a temporary duty assignment is curtailed, canceled, or interrupted for official purposes or reasons beyond the employee's control and acceptable to the agency, the employee may be reimbursed for pre-paid expenses that are not refundable, including a forfeited rental deposit, provided the employee sought to obtain a refund or took steps to minimize costs.