N.D. Cent. Code § 14-09-09.18
On application of a resident of this state, an obligee or an obligor of a support order issued by this state, or an agency to which an obligee has assigned support rights, the child support agency shall request the child support enforcement agency of another state in which the obligor of a support order derives income to enter the order for the purpose of obtaining income withholding against such income. The child support agency shall make that request within twenty days of the later of the date income withholding is determined appropriate or the date of receipt of any information necessary to carry out withholding. The child support agency shall compile and transmit to the child support agency of the other state all documentation required to enter an order for this purpose. The child support agency shall also transmit to the child support agency of the other state certified copies of any subsequent modifications of the support order. If the child support agency receives notice that the obligor is contesting the income withholding in another state, it shall immediately notify the individual obligee of the date, time, and place of the hearings and of the obligee's right to attend.
N.D.C.C. § 14-09-09.18