N.D. Cent. Code § 32-18-04
The vendee or purchaser, or the vendee's or purchaser's assigns, shall have the following periods of time after the service of notice of cancellation upon such party in which to perform the conditions or comply with the provisions upon which the default shall have occurred:
Upon such performance and upon making such payments, together with the cost of service of such notice, such contract or other instrument shall be reinstated and shall remain in full force and effect as if no default had occurred therein. If, however, such vendee or purchaser, or such vendee's or purchaser's assigns, shall not complete such performance or make such payment within the time periods provided by this section, the contract shall be terminated and shall not be reinstated by any subsequent offer of performance, or tender of payment. No provisions in any contract for the purchase of land or an interest in land shall be construed to obviate the necessity of giving the aforesaid notice and no contract shall terminate unless such notice is given, any provision in such contract to the contrary notwithstanding, but the notice herein required shall not be deemed necessary if the contract in question is sought to be terminated by an action at law or in equity brought for that purpose upon failure to perform. This section shall apply to all instruments for a future conveyance of real estate or an equity therein which are executed on or after July 1, 1971. The time allowed to correct the default shall not be less than one year except in contracts involving an area not to exceed three acres.
N.D.C.C. § 32-18-04