Cal. Pub. Res. Code § 3347

If any section, subsection, subdivision, sentence or clause of this article is adjudged to be unconstitutional or invalid, such adjudication shall not affect the validity of the remaining portion of this article. It is hereby declared that this article would have been passed, and each division, section, subsection, subdivision, sentence or clause thereof, irrespective of the fact that any one or more sections, subsections, subdivisions, sentences or clauses might be adjudged to be unconstitutional, or for any other reason invalid.