Article XX Section 1 California Constitution
Below is the content of Article XX Section 1 of the California Constitution
Notwithstanding the provisions of Section 6 of Article XI, the County of Sacramento and all or any of the cities within the County of Sacramento may be consolidated as a charter city and county as provided by statute, with the approval of a majority of the electors of the county voting on the question of such consolidation and upon such other vote as the Legislature may prescribe in such statute. The charter City and County of Sacramento shall be a charter city and a charter county. Its charter city powers supersede conflicting charter county powers.
See also: Article XIX D Section 1 California Constitution