N.D. Cent. Code § 47-25-04
For the registration of a trade name under this chapter, the registrant shall pay to the secretary of state a fee of twenty-five dollars for an original registration, a fee of twenty-five dollars for an assignment, and a fee of ten dollars for a consent to use of a similar name or any other change in the original registration under this chapter. A registration remains in force for a period of five years from the date of the original registration and may be renewed within ninety days before its expiration date by reregistering in the same manner as an original registration. The secretary of state shall notify the registrant by mail at least ninety days before the expiration of the registration.
The secretary of state may destroy all registrations or renewals one year after expiration.
N.D.C.C. § 47-25-04