Cal. Revenue and Taxation Code - RTC § 93. Section 93.
(a)
Notwithstanding any other provision of law, except as provided in subdivisions (b) and (c), no local agency, school district, county superintendent of schools, or community college district shall levy an ad valorem property tax, other than that amount which is equal to the amount needed to make annual payments for the interest and principal on general obligation bonds or other indebtedness approved by the voters prior to July 1, 1978 or the amount levied pursuant to Part 10 (commencing with Section 15000) of Division 1 and Sections 39308, 39311, 81338, and 81341 of the Education Code. In determining the tax rate required for the purposes specified in this subdivision, the amount of the levy shall be increased to compensate for any allocation and payment of tax revenues required pursuant to subdivision (b) of Section 33670 and subdivision (d) of Section 33675 of the Health and Safety Code.
(b)
A county shall levy an ad valorem property tax on taxable assessed value at a rate equal to four dollars ($4) per one hundred dollars ($100) of assessed value, and at an equivalent rate when the ratio prescribed in Section 401 is changed from 25 percent to 100 percent. The revenue from that tax shall be distributed, subject to the allocation and payment as provided in subdivision (d) of Section 33675 of the Health and Safety Code, to local agencies, school districts, county superintendents of schools, and community college districts in accordance with the provisions of the Government Code through the 1978–79 fiscal year and in accordance with applicable provisions of the Revenue and Taxation Code in each fiscal year thereafter. Revenues from property tax delinquency penalties, and accrued legal interest paid on judgments for the recovery of unpaid property taxes rendered by courts of this state, shall be distributed pursuant to Sections 4653.6, 4655.4, and 4658.4 of the Revenue and Taxation Code, or their successors.
(c)
Any jurisdiction may levy an ad valorem property tax rate in the excess of the rate permitted in subdivision (b) in order to produce revenues in an amount which is equal to the amount needed to make annual payments for the interest and principal on any bonded indebtedness for the acquisition or improvement of real property which is approved by a two-thirds vote of its voters after June 4, 1986.