(a) To effectuate the purposes of title VII, the ADA, GINA, and the PWFA, any Commissioner, upon approval of the Commission, may demand in writing that a person appear at a stated time and place within the State in which such person resides, transacts business, or is served with the demand, for the purpose of testifying under oath before the Commission or its representative. If there be noncompliance with any such demand, the Commission may utilize the procedures of section 710 of title VII, the ADA, GINA, and the PWFA to compel such person to testify. A transcript of testimony may be made a part of the record of each investigation.

(b) Witnesses who testify as provided in paragraph (a) of this section shall be entitled to the same fees and mileage that are paid witnesses in the courts of the United States.