\nA requirement that income be withheld for child support shall promptly terminate as to prospective payments when the payor receives notice from the court or IV-D agency that:\n(1) The child support order has expired or become invalid; or\n(2) The initiating party, the obligor, and the district court judge agree to termination because there is another adequate means to collect child support or arrearages; or\n(3) The whereabouts of the child and obligee are unknown, except that withholding shall not be terminated until all valid arrearages to the State are paid in full. (1985 (Reg. Sess., 1986), c. 949, s. 2.)
North Carolina Legal Code