16 CFR 1105.9 - Itemized vouchers.
The participant shall be paid upon submission of an itemized voucher listing each item of expense. Each item of expense exceeding $15 must be substantiated by a copy of a receipt, invoice, or appropriate document evidencing the fact that the cost was incurred.
Title 16 published on 2014-01-01
no entries appear in the Federal Register after this date.