Participating members shall receive benefits according to this section and according to rules adopted by the board, not inconsistent with this chapter. No person is entitled to receive a prior service benefit if the person was not continuously employed by a governmental unit in North Dakota for a period of not less than two years immediately prior to eligibility for retirement.
Except for supreme and district court judges, unless a member specifically requests that the member receive benefits according to one of these options at the time of applying for retirement, all retirement benefits must be in the form of a single life benefit. For supreme and district court judges, unless a member specifically requests that the member receive benefits according to one of these options at the time of applying for retirement, all retirement benefits must be in the form of a lifetime monthly pension with fifty percent of the benefit continuing for the life of the surviving spouse, if any.
N.D.C.C. § 54-52-17