41 CFR § 301-11.3 - Subsistence expense reimbursement methods.

Subsistence expenses will be reimbursed primarily using the lodgings-plus per diem method. Subsistence expenses may also be reimbursed using the actual expense or the reduced per diem methods. Agencies may allow a different method to be used each calendar day. See appendix A to this part to find out where to access per diem rates for various types of Government travel.