; (2) by redesignating the items relating to sections 311 and 312 as relating to sections 321 and 322, respectively; and (3) by inserting after the item relating to section 305 the following: Subtitle B—Requirements relating to mailed ballots Sec. 311. Use of intelligent mail barcodes. . 4. Election mail and delivery improvements (a) Postmark required for ballots (1) In general Chapter 34 of title 39, United States Code, as amended by section 2, is amended by adding at the end the following: 3408. Postmark required for ballots (a) In general In the case of any absentee ballot carried by the Postal Service, the Postal Service shall indicate on the ballot envelope, using a postmark or otherwise— (1) the fact that the ballot was carried by the Postal Service; and (2) the date on which the ballot was mailed. (b) Definitions As used in this section— (1) the term absentee ballot means any ballot transmitted by a voter by mail in an election for Federal office, but does not include any ballot covered by section 3406