To receive reimbursement for househunting trip transportation expenses you must itemize your transportation expenses and provide receipts as required by §§ 301-11.25, 301-11.306 and 301-52.4(b) of chapter 301. For lump sum househunting trip subsistence reimbursement, you do not need to document your subsistence expenses. For per diem househunting trip subsistence expense reimbursement, you must itemize your lodging expenses and you must provide receipts as required by §§ 301-7.9(b), 301-11.25, 301-11.306 and 301-52.4(b) of chapter 301.
41 C.F.R. §302-5.15