ยง 512-a.  Deferred retirement. 1. Any member, who discontinues service
  other  than  by  death  or retirement, and who is credited with at least
  fifteen years of teaching service rendered  in  the  state,  by  written
  notice duly acknowledged and filed with the retirement board at any time
  before his membership would otherwise terminate pursuant to section five
  hundred  three  of this article, may elect, in lieu of the return of his
  accumulated contributions pursuant to section  five  hundred  twelve  of
  this  article, to continue membership with the privilege of applying for
  retirement pursuant to this section on or after the date he would  first
  be  eligible  for  retirement  had he remained in service but in no case
  prior to the date he attains age sixty.  Any  member,  who  discontinues
  service  other  than  by death or retirement on or after June thirtieth,
  nineteen hundred sixty-five and who is credited with at least ten  years
  of  teaching  service  rendered  in  the  state,  by written notice duly
  acknowledged and filed with the retirement board at any time before  his
  membership  would  otherwise  terminate pursuant to section five hundred
  three of this  article,  may  elect,  in  lieu  of  the  return  of  his
  accumulated  contributions  pursuant  to  section five hundred twelve of
  this article, to continue membership with the privilege of applying  for
  retirement  pursuant to this section on or after the date he would first
  be eligible for retirement had he remained in service  but  in  no  case
  prior  to the date he attains age fifty-five; provided, that in the case
  of persons who last became members on  or  after  July  first,  nineteen
  hundred seventy-three, the provisions of this paragraph shall apply only
  until July first, nineteen hundred seventy-four.
2.  The  retirement  allowance  for a member who has made the election
  pursuant to subdivision one of this section  shall  consist  of  (a)  an
  annuity  which  shall  be  the  actuarial  equivalent  of  such member's
  accumulated contributions at the time of retirement and (b) a pension of
  one-one hundred fortieth (1/140) of final average salary  multiplied  by
  the  total  number  of  years  of  credited  service  as  of the date of
  discontinuing service.
3. Any  member  who  discontinues  service  other  than  by  death  or
  retirement  on or after June thirtieth, nineteen hundred seventy and who
  is credited with at least  ten  years  of  full  time  teaching  service
  rendered  in  the  state,  at least two of which were rendered since the
  date he last  joined  the  retirement  system  and  subsequent  to  June
  thirtieth,   nineteen   hundred  sixty-seven,  by  written  notice  duly
  acknowledged and filed with the retirement board at any time before  his
  membership  would  otherwise  terminate pursuant to section five hundred
  three of this  article,  may  elect,  in  lieu  of  the  return  of  his
  accumulated  contributions  pursuant  to  section five hundred twelve of
  this article, to continue membership with the privilege of applying  for
  retirement  pursuant to this subdivision on or after the date he attains
  age fifty-five. The pension for a  member  who  has  made  the  election
  pursuant  to  this  subdivision shall be computed in accordance with the
  procedures set  forth  in  subdivision  four  of  section  five  hundred
  thirty-five of this article, unless the member has been credited with at
  least  twenty  years of full time New York state service, in which event
  his pension shall be computed in accordance with  subdivisions  two  and
  three  of  the  aforementioned  section. In no event, however, shall the
  pension so computed exceed seventy-five per cent of the  member's  final
  average salary. In addition to the pension provided by this subdivision,
  the  member  shall  receive  an  annuity  which  shall  be the actuarial
  equivalent  of  his  accumulated  contributions  at  the  time  of   his
  retirement.  In  the case of persons who last became members on or after
  July first, nineteen  hundred  seventy-three,  the  provisions  of  this
  subdivision shall apply only to those who discontinue service other than
  by   death   or   retirement  prior  to  July  first,  nineteen  hundred
  seventy-four.
4.  Any  person  who  is a member on or after June thirtieth, nineteen
  hundred ninety-eight and who discontinues service other than by death or
  retirement and who is credited with five  years  or  more  of  full-time
  teaching  service  rendered  in  the  state,  at least two of which were
  rendered since the date he or she last joined the retirement system,  by
  written  notice duly acknowledged and filed with the retirement board at
  any time before his or her membership would otherwise terminate pursuant
  to section five hundred three of this article, may elect, in lieu of the
  return of his or her accumulated contributions pursuant to section  five
  hundred  twelve  of  this  article,  to  continue  membership  with  the
  privilege of applying for retirement pursuant to this subdivision on  or
  after  the  date  he  or  she  attains age fifty-five. The pension for a
  member who has made the election pursuant to this subdivision  shall  be
  computed  in  accordance with the procedures set forth in paragraph b of
  subdivision five of section five hundred thirty-five  of  this  article,
  unless  the  member  has  been  credited  with  at least twenty years of
  full-time New York state service, in which  event  his  or  her  pension
  shall  be computed in accordance with paragraph a of subdivision five of
  the aforementioned section. In no event, however, shall the  pension  so
  computed  exceed three-quarters of the member's final average salary. In
  addition to the pension provided by this subdivision, the  member  shall
  receive an annuity which shall be the actuarial equivalent of his or her
  accumulated contributions at the time of his or her retirement.
5. Such member, when applying for retirement, may exercise the options
  pursuant to section five hundred thirteen of this article.
6.  Interest  on the contributions of such member after his membership
  otherwise would have been terminated pursuant to  section  five  hundred
  three  of  this  article  shall  be  credited  at  the  rate  fixed  for
  contributions by new entrants at the time of discontinuation of service.
7. If such member should die before the effective date of  retirement,
  his accumulated contributions shall be paid to his estate or beneficiary
  in  accordance  with the provisions of paragraph one of subdivision b of
  section five hundred twelve of this article.
8. In the event that such member returns  to  service,  such  election
  shall be considered to be withdrawn as of the date upon which he returns
  to  service  and  membership  in  the  retirement  system  will continue
  pursuant to subdivision three of section  five  hundred  three  of  this
  article.
9.  Any  other  provision  of law to the contrary notwithstanding, any
  member who fails to file the election pursuant to  subdivisions  one  or
  three  of  this  section  and  whose  membership  would  otherwise cease
  pursuant to subdivision three of section  five  hundred  three  of  this
  article,  shall be deemed to have filed such election the day before his
  membership shall have ceased.
10. Notwithstanding any provision of this section to the  contrary,  a
  person who has elected to continue membership pursuant to the provisions
  of  this  section,  and  who  is  qualified  to transfer pursuant to the
  provisions of section five hundred twenty-two of this chapter or section
  forty-three of the retirement and social security law, shall  be  deemed
  eligible to transfer, pursuant to such sections of law.
11.  Any  other  provision of law to the contrary notwithstanding, any
  former member who met all the eligibility  requirements  of  subdivision
  one  or  three of this section, but failed to file the election required
  by such subdivisions, as a result of which his membership in the  system
  was terminated because his service amounted to less than five years in a
  period  of  ten  consecutive  years,  shall be deemed to have filed such
  election the day before membership ceased, provided such  former  member
  files  an  application with the system requesting that his membership be
  reinstated pursuant to this subdivision  and  deposits  the  accumulated
  contributions  withdrawn from the system with regular interest; provided
  however that no such application shall be valid if (i) the service which
  would be credited thereunder is credited in any public retirement system
  in the United States, or (ii) a  benefit  is  being  received  from  any
  public retirement system based upon such credit.
12.  Notwithstanding  any other provision of this section a person who
  has elected to continue membership pursuant to the  provisions  of  this
  section  may  withdraw  from membership in the system in accordance with
  the provisions of this article.
Structure New York Laws
Article 11 - State Teachers' Retirement System for Public School Teachers
504 - Retirement Board; Members; Terms of Office; Vacancies.
505 - Election of the Active Teacher Members of the Board.
505-A - Election of Retired Teacher Member of Board.
506 - Board Meetings; Oaths of Office; Quorum; Expenses.
507 - Officers of Board; Custody of Funds.
508 - Investment of Funds; Interest; Accounts; Reports.
509 - Statements of Teachers' Service; Determination of Service Creditable; Service Certificates.
510 - Superannuation Retirement.
511-A - Special Service Retirement.
512 - Withdrawal and Death Benefits.
514 - Benefits to Participants in Old Retirement Fund.
516 - Annuity Savings Fund; Contributions and Payments.
517 - Annuity Reserve Fund; Pension Accumulation Fund.
518-A - Supplemental Retirement Allowance Fund.
521 - Collection of Contributions.
522 - Transfer of Contributions Between Retirement Systems.
524 - Exemption From Taxation and Execution.
525 - Protection Against Fraud.
526 - Merger of Local Teachers' Retirement and Pension Systems With the State System.
528 - Pensions-Providing-for-Increased-Take-Home-Pay.
529 - Pensions Providing for Increased Take Home Pay for Certain Teachers.
530 - Pensions-Providing-for-Increased-Take-Home-Pay-for-Teachers.
532 - Supplemental Retirement Allowance.
532-A - Cost-of-Living Adjustment.
533 - Non-Contributory Retirement Plan.
536 - Deductions From Benefits of Certain Retired Members.
537 - Lump Sum Payment of De Minimis Service Retirement Benefit.