Cal. Rev. & Tax. Code § 214.16
(a) Any outstanding tax, interest, or penalty that was levied or imposed upon property that qualifies for an exemption pursuant to Section 214 and satisfies the criteria specified in subparagraph (D) of paragraph (1) of subdivision (g) of Section 214 between January 1, 2002, and January 1, 2009, shall be canceled, provided that the owner of the property certifies that all of the following conditions were met at the time the tax was levied: