(a) The Assistant Secretary or presiding official may require that the direct testimony of witnesses in trial-type hearings be submitted in advance of the hearing and be under oath, and in written form.

(b) Witnesses who testify in trial-type hearings shall be under oath or affirmation before being allowed to testify.

(c) Witnesses subpoenaed pursuant to §590.306 shall be paid the same fees and mileage as paid for like services in the District Courts of the United States.

(d) Witnesses subpoenaed pursuant to §590.307 shall be paid the same fees and mileage as paid for like services in the District Court of the United States.

[54 FR 53531, Dec. 29, 1989; 55 FR 14916, Apr. 19, 1990]