California Code
ARTICLE 3 - Judgment Lien on Personal Property
Section 697.560.

697.560. At the time of filing the notice of judgment lien on personal property or promptly thereafter, the judgment creditor shall serve a copy of the notice of judgment lien on the judgment debtor. Service shall be made personally or by mail. The failure to comply with this requirement does not affect the validity of the judgment lien.

(Added by Stats. 1982, Ch. 1364, Sec. 2. Operative July 1, 1983, by Sec. 3 of Ch. 1364.)