N.D. Cent. Code § 15-39.1-10.6
Benefits with respect to a member participating under former chapter 15-39 or chapter 15-39.1 or 15-39.2 may not exceed the maximum benefits specified under section 415 of the Internal Revenue Code [ 26 U.S.C. 415 ], as amended, for governmental plans. The maximum dollar benefit applicable under section 415(b)(1)(A) of the Internal Revenue Code must reflect any increases in this amount provided under section 415(d) of the Internal Revenue Code, as amended. If a member's benefit is limited by these provisions at the time of retirement or termination of employment, or in any subsequent year, the benefit paid in any following calendar year may be increased to reflect all cumulative increases in the maximum dollar limit provided under section 415(d) of the Internal Revenue Code for years after the year employment terminated or payments commenced, but not to more than would have been payable in the absence of the limits under section 415 of the Internal Revenue Code. If an annuitant's benefit is increased by a plan amendment, after the commencement of payments, the member's benefit may not exceed the maximum dollar benefit under section 415(b)(1)(A) of the Internal Revenue Code, adjusted for the commencement age and form of payment, increased as provided by section 415(d) of the Internal Revenue Code. If this plan must be aggregated with another plan to determine the effect of section 415 of the Internal Revenue Code on a member's benefit, and if the benefit must be reduced to comply with section 415 of the Internal Revenue Code, then the reduction must be made pro rata between the two plans, in proportion to the member's service in each plan.
N.D.C.C. § 15-39.1-10.6