California Code, Government Code - GOV § 50079.6

(a) In addition to those persons described in subparagraphs (A) to (C), inclusive, of paragraph (1) of subdivision (b) of Section 50079, a qualified special tax imposed by the Davis Joint Unified School District in accordance with Section 50079 may provide an exemption for teachers and other employees of the school district for their principal place of residence located within the jurisdictional boundaries of the school district.

(b) Any exemption granted pursuant to subdivision (a) shall remain in effect until the taxpayer becomes ineligible.  If the taxpayer becomes ineligible for the exemption for any reason, a new exemption may be granted in the same manner.

(c) This section shall become inoperative on January 1, 2021.

(d) Notwithstanding subdivision (c), or any other law, any exemption allowed pursuant to this section shall remain in effect for the duration of the period for which the tax is imposed.

(e) Nothing in this section shall be construed to prohibit or limit the Davis Joint Unified School District from imposing, or continuing to impose, a qualified special tax authorized by Section 50079.