The Mayoral Transition Temporary Amendment Act of 2026 aims to clarify the definition of "Mayor-elect" and the organization of transition committees for the Mayor-elect in the District of Columbia. The bill amends the Board of Ethics and Government Accountability Establishment and Comprehensive Ethics Reform Amendment Act of 2011 by adding a new definition for "Mayor-elect" as the individual certified as the successful candidate by the Board of Elections after the 2026 general election, or the unofficial winner announced with a margin of victory of at least 2%. Additionally, it modifies existing language to include the Mayor-elect alongside the Mayor and Attorney General in relevant contexts.

Furthermore, the bill updates the Official Correspondence Regulations to align with the new definition of Mayor-elect. It includes a redesignation of existing paragraphs and specific amendments to ensure consistency across legal texts. The act will take effect upon approval by the Mayor and will expire 225 days after its enactment.