The disability benefit approved pursuant to § 3-12C-817 is the greater of the following calculations:
The disability benefit must be paid in monthly installments for the life of the foundation member unless the benefit terminates pursuant to § 3-12C-822.
For purposes of determining the eligibility of a surviving spouse benefit and administering a qualified domestic relations order, the disability benefit of a foundation member is considered a retirement benefit when the member attains normal retirement age.
SDCL 3-12C-818