Assembly Constitutional Amendment 59. Amends section 8 of Article XI of Constitution. Permits filing petitions for charter amendments at any time. Provides that amendments to charter shall be submitted by the legislative body of the city or city and county to the electors at the time of the holding of the next regular municipal election held not less than 60 days from the date of filing of the petition, or at any special election called for that purpose prior to the next regular municipal election. Provides qualified electors are those whose names appear upon current registration records