Cal. HSC § 20110

A district may levy special taxes services pursuant to the following: (a) Article 3.5 (commencing with Section 50075) of Chapter 1 of Part 1 of Division 1 of the Government Code. (b) Article 16 (commencing with Section 53970) of Chapter 4 of Part 1 of Division 2 of Title 5 of the Government Code.