Cal. Gov't Code § 65995.5
(b) To be eligible to impose the fee, charge, dedication, or other requirement up to the amount calculated pursuant to this section, a governing board shall do all of the following:
(3) Until January 1, 2000, satisfy at least one of the requirements set forth in subparagraphs (A) to (D), inclusive, and, on and after January 1, 2000, satisfy at least two of the requirements set forth in subparagraphs (A) to (D), inclusive:
(A) The district is a unified or elementary school district that has a substantial enrollment of its elementary school pupils on a multitrack year-round schedule. “Substantial enrollment” for purposes of this paragraph means at least 30 percent of district pupils in kindergarten and grades 1 to 6, inclusive, in the high school attendance area in which all or some of the new residential units identified in the needs analysis are planned for construction. A high school district shall be deemed to have met the requirements of this paragraph if either of the following apply:
(C) The district meets one of the following:
(c) The maximum square foot fee, charge, dedication, or other requirement authorized by this section that may be collected in accordance with Chapter 6 (commencing with Section 17620) of Part 10.5 of the Education Code shall be calculated by a governing board of a school district, as follows: