California Code, Health and Safety Code - HSC § 52097

Except as otherwise provided in this article, this chapter shall not be construed to limit or otherwise restrict the authority of chartered cities to issue bonds for the purpose of financing the acquisition, construction, rehabilitation, refinancing, or development of multifamily rental housing or for the provision of capital improvements in connection with and determined necessary to that multifamily rental housing. For purposes of this article, certificates of participation in any form of obligation of a city, county, or city and county shall be considered to be bonds.