N.D. Cent. Code § 4.1-73-07 (2025)
4.1-73-07. Numerical brands - Applicability of designated placement provisions.
The design and placement restrictions set forth in this chapter do not apply to:
1. A numerical brand that was first recorded before July 1, 1957, and which has been continually rerecorded; or
2. An unrecorded numerical brand that is used for purposes such as herd or animal identification or registration.