CA Civ Proc Code Section 706.032

(a)

Except as otherwise provided by statute:

(1)

If withholding under an earnings withholding order ceases because the judgment debtor’s employment has terminated, the earnings withholding order terminates at the conclusion of a continuous 180-day period during which no amounts are withheld under the order.

(2)

If withholding under an earnings withholding order ceases because the judgment debtor’s earnings are subject to an order or assignment with higher priority, the earnings withholding order terminates at the conclusion of a continuous two-year period during which no amounts are withheld under the order.

(b)

If an earnings withholding order has terminated pursuant to subdivision (a), the employer shall return the order to the levying officer along with a statement of the reasons for returning the order.