Minn. Stat. § 356.42
Subd. 1. Entitlement.
A person who is receiving a retirement annuity, a disability benefit, or a surviving spouse's annuity or benefit from a retirement fund specified in subdivision 3, clauses (1) to (8), is entitled to receive a postretirement adjustment from the applicable retirement fund in the amount specified in subdivision 2, if the annuity or benefit was computed under:
Subd. 2. Amount of postretirement adjustment; payment.
(c) For basic plan annuity or benefit recipients, the postretirement adjustment in 1989 is the greater of:
(2) the difference between:
(ii) the sum of the benefits payable to the person from any Minnesota public employee pension plan, and cash benefits payable to the person from the Social Security Administration.
In 1990 and each following year, each eligible basic plan annuity or benefit recipient shall receive the amount received in the preceding year increased by the same percentage applied to regular annuities paid from the postretirement fund or, for the retirement funds specified in subdivision 3, clauses (6), (7), and (8), by the same percentage applied under the articles of incorporation and bylaws of these funds.
Subd. 3. Covered retirement plans.
The postretirement adjustment provided in this section applies to the following retirement funds: