Each U.S. Attorney is authorized to designate any Assistant U.S. Attorney in his office to perform the functions and duties of the U.S. Attorney during his absence from office, or with respect to any matter from which he has recused himself, and to sign all necessary documents and papers, including indictments, as Acting U.S. Attorney while performing such functions and duties. [Order No. 840-79, 44 FR 43468, July 25, 1979. Redesignated by Order No. 2650-2003, 68 FR 4926, Jan. 31, 2003. Further redesignated by Order No. 3229-2010, 75 FR 70123, Nov. 17, 2010]