California Code, Government Code - GOV § 53412

(a) “Local agency” means any county, city, city and county, including a charter city or county, or any special district.

(b) “Special district” means an agency of the state, formed pursuant to general law or a special act, for the performance of governmental or proprietary functions, with limited geographic boundaries, including, but not limited to, a school district and a community college district.

(c) “Bond” means any bonded indebtedness regardless of state law or charter that requires voter approval, including, but not limited to, general obligation bonds, revenue bonds, and bonds issued pursuant to the Mello-Roos Community Facilities Act (Chapter 2.5 (commencing with Section 53311)).