FAMILY CODE SECTION 5280-5282
5280. If the obligee making the application under this chapter also
states that the whereabouts of the obligor or the identity of the
obligor’s employer is unknown to the party to whom support has been
ordered to be paid, the local child support agency shall do both of
(a) Contact the California parent locator service maintained by
the Department of Justice in the manner prescribed in Section 17506.
(b) Upon receiving the requested information, notify the court of
the last known address of the obligor and the name and address of the
obligor’s last known employer.
5281. An assignment order required or authorized by this chapter
shall include a requirement that the obligor notify the obligee of
any change of employment and of the name and address of the obligor’s
new employer within 10 days of obtaining new employment.
5282. After the obligor has left employment with the employer, the
employer, at the time the next payment is due on the assignment
order, shall notify the obligee designated in the assignment order by
first-class mail, postage prepaid, to the last known address of the
obligee that the obligor has left employment.