Section 13-188. Transferred contributors

a. Any contributor who resigns his
  or her position to accept and who, within sixty  days  thereafter,  does
  accept  another  position  in  the  city-service  shall continue to be a
  contributor  while  in  such  city-service  and  shall  be  known  as  a
  transferred-contributor  provided  he or she executes and files with the
  retirement board a statement in writing that he or she elects  to  leave
  with  the  annuity savings fund his or her accumulated deductions and to
  continue to contribute to such fund at a rate of  salary  deduction  not
  less  than  the  rate  of deduction theretofore required from his or her
  salary, and further provided that he or she shall waive and renounce any
  present or prospective benefit  from  any  other  retirement  system  or
  association  supported  wholly or in part by the city. Where an election
  is  made  pursuant  to  the  provisions  of  this  section,  the  salary
  deductions  required by such provisions shall be appropriately modified,
  if a rate of deduction is otherwise fixed, pursuant to section 13-152 of
  this chapter for the transferred-contributor making such election.
    b. Notwithstanding the provisions of subdivision a  of  this  section,
  any transferred-contributor who had been eligible to transfer to the New
  York  city  board  of  education  retirement  system on or after January
  first, nineteen hundred ninety shall be eligible  to  transfer  to  such
  system provided that he or she applies to transfer within ninety days of
  the  effective  date  of  this  subdivision.  Should  such a transfer be
  effected, the member shall be deemed to have been a member  of  the  New
  York city board of education retirement system since the commencement of
  his or her employment by the New York city board of education.