Upon approval by a majority of the electors of the Municipality voting thereon at the election on the date designated by the Charter Commission, this Charter shall take effect on July 1, 2021. If approved by a majority of the electors voting thereon, any subsequent amendments shall take effect from the date the final results of such election are certified by the relevant election authorities unless such amendments specify a later effective date; provided, however, that such certification date shall be the effective date for the purpose of designating, nominating, and electing officers of the Municipality and conducting municipal elections.