Paragraph (h) of subsection (1) of section 4 of chapter 32 of the General Laws, as appearing in the 2016 Official Edition, is hereby amended by striking out the fourth paragraph and inserting in place thereof the following paragraph:-

Notwithstanding the provisions of this chapter or any other general or special law, rule or regulation to the contrary, a member in service of a retirement system as defined in section 1 who serves or has served in the National Guard or Active Reserve or who is a veteran who served in the armed forces of the United States shall be entitled to credit for such service; provided, however, that such service shall not be credited until such member has paid into the annuity savings fund of such system, in 1 sum or in installments, upon such terms and conditions as the board may prescribe, makeup payments, for each year of creditable service sought, of an amount equal to the 10 per cent of the regular annual compensation of the member when said member entered the retirement system; provided further, that such creditable service shall not be construed to include service for more than 4 years; and provided further, that such creditable service shall not be allowed for any period of service for which said member has received credit pursuant to paragraph (h) of subsection (1) of this section.