Section 580-503. Compliance with multiple income-withholding orders

If an
  obligor's employer  receives  multiple  income-withholding  orders  with
  respect  to the earnings of the same obligor, the employer satisfies the
  terms of the multiple orders if the employer complies with  the  law  of
  the  state  of  the obligor's principal place of employment to establish
  the priorities  for  withholding  and  allocating  income  withheld  for
  multiple child support obligees.