41 C.F.R. § 301-52.13 Should I keep itemized records of my expenses while on travel?
Title 41 - Public Contracts and Property Management
Yes. You will find it helpful to keep a record of your expenses by date of the expense to aid you in preparing your travel claim or for tax purposes.
Title 41: Public Contracts and Property Management
PART 301–52—CLAIMING REIMBURSEMENT
§ 301-52.13 Should I keep itemized records of my expenses while on travel?
