Actuarial factors - Optional payment forms

Under the optional joint and survivor, term certain and life, and partial lump sum forms of annuity payment shall be based on the following actuarial assumptions: 1. Interest rate - 7.25 percent per year, compounded annually. 2. Member's mortality (used for nondisabled members) - A mortality table constructed by blending thirty percent of the mortality rates under a combination of PubT-2010 employee and PubT-2010 healthy retiree tables for males, adjusted by one hundred four percent for ages fifty-five and older, and projected to 2022 using projection scale MP-2019, with seventy percent of the mortality rates under a combination of PubT-2010 employee and PubT-2010 healthy retiree tables for females, adjusted by one hundred four percent for ages fifty-five and older, and projected to 2022 using projection scale MP-2019. 3. Beneficiary's mortality - A mortality table constructed by blending seventy percent of the mortality rates under a combination of PubT-2010 employee and Pub-2010 contingent survivor tables for males, adjusted by ninety-five percent for ages forty-five and older, and projected to 2022 using projection scale MP-2019, with thirty percent of the mortality rates under a combination of PubT-2010 employee and Pub-2010 contingent survivor tables for females, adjusted by ninety-five percent for ages forty-five and older and projected to 2022 using projection scale MP-2019. Mortality tables for survivors under age eighteen use the RP-2014 juvenile tables with fifty percent blending of the male/female rates and projected to 2022 using projection scale MP-2019. 4. Disabled member's mortality - A mortality table constructed by blending thirty percent of the mortality rates under the PubNS-2010 non-safety disabled mortality table for males, projected to 2022 using projection scale MP-2019, with seventy percent of the mortality rates under the PubNS-2010 non-safety disabled mortality table for females, projected to 2022 using projection scale MP-2019. In addition, the above actuarial assumptions shall be used to determine actuarial equivalence for other purposes not covered by sections 82-05-04-01, 82-05-04-03, and 82-05-04-04, such as the determination of the reduction to a member's benefit because of the existence of a qualified domestic relations order.