California Code, Code of Civil Procedure - CCP § 697.360

(a) If a judgment lien on real property has been created under a money judgment that is thereafter modified as to its amount, an abstract of the modified judgment or a certified copy of the order modifying the judgment may be recorded in the same manner as an abstract of judgment or a certified copy of the judgment is recorded to create a judgment lien.

(b) If a judgment lien on real property has been created under a money judgment that is thereafter modified to reduce its amount, the judgment lien continues under the terms of the judgment as modified, whether or not the modification is recorded as provided in subdivision (a).

(c) If a judgment lien on real property has been created under a money judgment that is thereafter modified to increase its amount, the judgment lien continues under the terms of the original judgment until such time as the modification is recorded as provided in subdivision (a). Upon such recording, the judgment lien extends to the judgment as modified, but the priority for the additional amount under the judgment as modified dates from the time the modification is recorded.

(d) Notwithstanding subdivision (c), if a judgment lien on real property has been created under a money judgment, by recording of an abstract of support judgment under paragraph (1) of subdivision (a) of Section 697.320, and the support order is thereafter modified to increase its amount, the judgment lien extends to the judgment as modified without the need for recording of another abstract of support judgment, but the priority for the additional amount under the judgment dates from the time the modification is effective.

(e) A support obligee shall respond in a timely manner to (1) a title or escrow company request for a demand statement needed to close an escrow relating to a support judgment lien, or (2) a support obligor who claims an error exists in the amount of alleged arrears.

(f) A support obligor who complies with the procedure specified in Division 5 (commencing with Section 724.010) shall be entitled to the remedies specified therein.