N.Y.C. Admin. Code § 13-241: § 13-241 Termination of membership; election to city, county or state office.

Should a member previously in city-service as a city official or employee be elected a city, county or state official, he or she may on application therefor and approval by the mayor, withdraw from the pension fund, and upon such withdrawal, he or she shall be paid such part of the amount of the accumulated deductions standing to the credit of his or her individual account in the annuity savings fund as he or she shall be entitled to receive.