California Code, Government Code - GOV § 16187

(a) In the event of a judicial foreclosure of any lien senior in priority to the lien provided by Section 16182, notice shall be given the Controller, in such manner as the Controller may prescribe, not less than 60 days prior to the sale upon judicial foreclosure of any lien senior in priority to the lien provided by Section 16182, unless the Controller is named and served as a defendant in a judicial proceeding for foreclosure.

(b) In the event of a nonjudicial foreclosure of any lien senior in priority to the lien provided by Section 16182, notice shall be given to the Controller, pursuant to Section 2924b of the Civil Code.  However, when the notice of lien for postponed property taxes is recorded subsequent to the recordation of a notice of default, the Controller shall be given notice of sale not less than 25 days prior to such sale provided that the lien for postponed property taxes is recorded more than 30 days before such sale.

In the event of a failure to give the notice required by this section, the lien established by Section 16182 shall not be affected by the foreclosure or sale of any such senior lien.