ve or provide on the basis of his privilege against self-incrimination, such order to become effec- tive as provided in section 6002 of this title. Complete Annotation Materials• see Title to, U.S.C.A. 1210 EFTA00223908 Ch. 601 IMMUNITY OF WITNESSES 18 § 6005 (b) A United States attorney may, with the approv- al of the