Where such member shall have earned at least two years of member service credit after restoration to active service, the total service credit to which he was entitled at the time of his earlier retirement may, at his option, again be credited to him and upon his subsequent retirement he shall be credited in addition with all member service earned by him subsequent to his last restoration to membership. Such total service credit to which he was entitled at the time of his earlier retirement shall be so credited only in the event that such member returns to the retirement system with regular interest the actuarial equivalent of the amount of the retirement allowance he received, or in the event that such amount is not so repaid the actuarial equivalent thereof shall be deducted from his subsequent retirement allowance.
Notwithstanding the foregoing provisions of this subdivision, a retired member who is receiving a retirement allowance for other than physical disability, and who returns to active public service, may elect not to be restored to membership in the retirement system until he has rendered one year of service following his return to public service. In such event his retirement allowance shall be suspended during such year of service as provided in subdivision b of this section. Upon restoration to membership following completion of such year of service, his service in such year shall be deemed to be service while a member for purposes of subdivision b of section sixty of this chapter. He may purchase member service credit for such year, which shall be deemed earned member service credit. This paragraph shall not be construed to authorize the return to public service of any person who is otherwise not eligible therefor on account of having reached age seventy.
If a retired member receiving a retirement allowance for other than physical disability, returns to active public service, and is then ineligible for membership in the retirement system, his retirement allowance shall be suspended in the same manner as provided in subdivision b of this section.
In the case of any person who shall have retired after having served as an officer or employee of the legislature for a period in excess of fifteen years and whose return to active service shall be requested, in a written certificate of and filed with the comptroller by:
N.Y. Retire. and Soc. Sec. Law § 101