N.D. Cent. Code § 28-21-04.2
If a judgment creditor proposes to execute on moneys owed to the judgment debtor by a third party who is retaining the money pursuant to garnishment, the execution must be made between twenty and three hundred sixty days after service of the garnishment summons. The execution may be served by personal service or by certified mail upon the third party by a sheriff or by an attorney licensed to practice law in this state. The execution may be directed to the sheriff of any county. A transcript of the judgment need not be filed in the county of the sheriff to whom the execution is directed. Upon receipt, the third party shall remit the amount due under the garnishment to the sheriff or the attorney who shall proceed in all other respects like the sheriff making a similar execution. If the judgment debtor files a claim of exemptions under section 32-09.1-22 within twenty days after service of the garnishment summons, an execution may not be made against moneys claimed as exempt and retained under the garnishment summons until the court determines that the moneys being garnished are not exempt.
N.D.C.C. § 28-21-04.2