Witness fees.
CFR · 2024-01-01 · US · Title 5
(a) Witnesses, whether appearing voluntarily or pursuant to a subpoena, (b) Witness fees, as appropriate, as well as transportation and per diem expenses for a witness shall be paid by the party that calls the witness to testify.
official document · source cfr-2024 · id 5:§ 2429.14