The chief executive officer of the Postal Service is the Postmaster General appointed under section 202(c) of this title . The alternate chief executive officer of the Postal Service is the Deputy Postmaster General appointed under section 202(d) of this title . ( Pub. L. 91–375 , Aug. 12, 1970 , 84 Stat. 721 .) Statutory Notes and Related Subsidiaries Effective Date Section effective Aug. 12, 1970 , see section 15(a) of Pub. L. 91–375 , set out as a note preceding section 101 of this title . CFR Title Parts 39 2 , 3 , 4 , 5 , 221 , 222 , 223 , 551