7 C.F.R. § 97.176
Fees payable in advance
Fees and charges shall be paid at the time of making application or at the time of submitting a request for any action by the Office for which a fee or charge is payable and established in this part.
Fees and charges shall be paid at the time of making application or at the time of submitting a request for any action by the Office for which a fee or charge is payable and established in this part.