Section 5230.1 Of Article 2. General Provisions From California Family Law Code >> Division 9. >> Part 5. >> Chapter 8. >> Article 2.

. (a) An earnings assignment or income withholding order for support issued by a court or administrative agency of another state is binding upon an employer of the obligor to the same extent as an earnings assignment order made by a court of this state.
  (b) When an employer receives an earnings assignment order or an income withholding order for support from a court or administrative agency in another state, all of the provisions of this chapter shall apply.