Subdivision (2) of section 6 of chapter 32 of the General Laws, is hereby amended by inserting the following new paragraph:-

(e) Upon acceptance of this paragraph by a retirement system, payments to a member retired under the provisions of this section shall be no less than the monthly payment to a disabled individual, with the same marital status and living situation, under the state supplemental security income program. Acceptance of this paragraph shall be by a majority vote of the board of each such system, subject to the approval of the legislative body. For the purposes herein, “legislative body” shall mean, in the case of a city, the city council in accordance with its charter, in the case of a town, the board of selectmen, in the case of a county, the county retirement board advisory council, in the case of a region, the regional retirement board advisory council, in the case of a district, the district members, and, in the case of an authority, the governing body. Acceptance shall be deemed to have occurred upon the filing of a certification of such votes with the commission.  For purposes herein, the state teachers’ and state employees’ retirement systems shall be deemed to have accepted this paragraph.