US lawCaliforniaConstitutionArticle XVIII3Cal. Const. art. XVIII, § 3California Constitution Article XVIII, Section 3Last amended: 1970Length: 20 wordsOfficial source The electors may amend the Constitution by initiative. (Sec. 3 added Nov. 3, 1970, by Prop. 16. Res.Ch. 187, 1970.)PreviousCal. Const. art. XVIII, § 2NextCal. Const. art. XVIII, § 4