To be valid, a military-overseas ballot must be received by the Board of Elections no later than 8:00 p.m. on the date of the election.
D.C. Code § 1-1061.10
Timely casting of ballot
Known as the Uniform Military and Overseas Voters Act
The act spans §§ 1–1 (20 sections).
June 5, 2012, D.C
Official source: D.C. Law Library (Council of the District of Columbia). Reproduced from public-domain District of Columbia statutes; confirm against the official source for the current text. Not legal advice.