; and (2) was implemented or approved during the period beginning on June 15, 2020, and ending on the date of the enactment of this Act. (b) Biennial report Not later than January 1 of any odd-numbered calendar year beginning after the date of the enactment of this Act, the Postmaster General shall submit to Congress a report on any changes described in section 2(a) that were implemented or approved during the previous calendar year. (c) Military and overseas absentee voting Not later 30 days after the date of the enactment of this Act, and annually thereafter, the Secretary of Defense, acting through the Presidential designee under the Uniformed and Overseas Citizens Absentee Voting Act, shall submit to Congress a report on how changes to the operations or level of service provided by the Postal Service affect absentee voting by absent uniformed service voters and overseas voters under such Act. (d) Implementation of Military and Overseas Voter Empowerment Act Not later than 30 days after the date of the enactment of this Act and annually thereafter, the Inspector General of the Department of Defense shall submit to Congress a report on the effectiveness of the implementation of the Military and Overseas Voter Empowerment Act (subtitle H of title V of the National Defense Authorization Act for Fiscal Year 2010