California Code, Revenue and Taxation Code - RTC § 214.5

(a) Property used exclusively for school purposes of less than collegiate grade, or exclusively for purposes of both schools of and less than collegiate grade, and owned and operated by religious, hospital or charitable funds, foundations or corporations, which property and funds, foundations, limited liability companies, or corporations meet all of the requirements of Section 214, shall be deemed to be within the exemption provided for in subdivision (b) of Section 4 and Section 5 of Article XIII of the Constitution of the State of California and Section 214. This section shall not be construed to enlarge the college exemption.

(b) The amendments made by the act adding this subdivision shall apply with respect to lien dates occurring on and after January 1, 2005.