11 CFR § 111.14
Witness fees and mileage (52 U.S.C. 30107 (a)(5))
June 10, 2020
Witnesses subpoenaed to appear for depositions shall be paid the same fees and mileage as witnesses in the courts of the United States. Such fees may be tendered at the time the witness appears for such deposition, or within a reasonable time thereafter.