CA Welf & Inst Code Section 6331

This article shall become inoperative the day after the election at which the electors adopt this section, except that the article shall continue to apply in all respects to those already committed under its provisions.

The provisions of this section shall not be amended by the Legislature except by statute passed in each house by rollcall vote entered in the journal, two-thirds of the membership concurring, or by a statute that becomes effective only when approved by the electors.