41 CFR 302-5.8: -5.8 Requirement to document househunting trip expenses.

Employees must itemize their transportation expenses and provide receipts for any other claimed expenses except for meals. For lump sum househunting trip subsistence reimbursement, subsistence expenses do not need to be documented. If the lump sum househunting amount is more than adequate to cover the househunting expenses, any balance belongs to the employee. For lodgings-plus per diem househunting trip subsistence expense reimbursement, the employee must itemize their lodging expenses and must provide receipts as stated in this section.