(a) If a majority of those voting in an existing municipality favor the proposed charter or if a majority of those voting to form a home rule municipality by incorporation, merger, or consolidation favor incorporation, merger, or consolidation, the proposed charter becomes the organic law of the municipality effective on the date the election is certified. Thereafter, a court shall take judicial notice of the charter. The new home rule municipality shall file the indicated number of copies of the charter with

(1) the lieutenant governor - two copies;

(2) the department - two copies;

(3) the district recorder - one copy;

(4) the municipal clerk - one copy.

(b) At the time of voting on the proposed charter in a third class borough, voters shall vote also on whether the borough shall, on adoption of the charter, retain a combined assembly and school board or elect a separate assembly and board as otherwise provided for home rule boroughs. If a combined assembly and school board are approved at the charter election, the assembly serving at the time of the election continues to serve as the assembly and board on voter approval of the charter and until terms of assembly members expire as provided before adoption of the charter. If a separate board and assembly are approved at the charter election, a school board shall be elected in conformity with AS 14.12.030 - 14.12.100 at the next regular election, if it occurs within 90 days of the date of the charter election, or otherwise at a special election within 90 days of the date of the charter election. Expiration dates of terms of school board members elected at a special election shall coincide with the date of the regular election. Until a board is elected and qualified, the assembly continues to serve as the board.