(a) When the subject matter of a case or proceeding is within his or her respective jurisdiction, the Assistant Attorney General, Criminal Division, the Assistant Attorney General for National Security, or any Deputy Assistant Attorney General, Criminal Division or of the National Security Division is authorized to exercise the authority vested in the Attorney General by 18 U.S.C. 6003, to approve the application of a U.S. Attorney to a federal court for an order compelling testimony or the production of information by a witness in any proceeding before or ancillary to a court or grand jury of the United States, and the authority vested in the Attorney General by 18 U.S.C. 6004, to approve the issuance by an agency of the United States of an order compelling testimony or the production of information by a witness in a proceeding before the agency, when the subject matter of the case or proceeding is either within the cognizance of the Assistant Attorney General, Criminal Division, the Assistant Attorney General for National Security, or is not within the cognizance of the Divisions or Administration designated in paragraphs (b) and (c) of this section.

(b) The Assistant Attorneys General or any Deputy Assistant Attorney General of the Antitrust Division, the Civil Division, the Civil Rights Division, the Environment and Natural Resources Division and the Tax Division are authorized to exercise the power and authority vested in the Attorney General by 18 U.S.C. 6003 to approve the application of a U.S. Attorney to a Federal court for an order compelling testimony or the production of information in any proceeding before or ancillary to a court or grand jury of the United States when the subject matter of the case or proceeding is within the cognizance of their respective Divisions: Provided, however, That no approval shall be granted unless the Criminal Division indicates that it has no objection to the proposed grant of immunity.

(c) The Assistant Attorneys General and Deputy Assistant Attorneys General designated in paragraph (b) of this section, and the Administrator of the Drug Enforcement Administration are authorized to exercise the authority vested in the Attorney General by 18 U.S.C. 6004 to approve the issuance by an agency of the United States of an order compelling testimony or the production of information by a witness in a proceeding before the agency when the subject matter of the proceeding is within the cognizance of their respective Divisions or the Administration: Provided, however, That no approval shall be granted unless the Criminal Division indicates that it has no objection to the proposed grant of immunity.