Section 13-690. Definitions

As  used in this article, the following terms
  shall mean and include:
    a. "Closed pension fund other-than-disability retiree". (1)  A  person
  who retired, prior to January first, nineteen hundred eighty, other than
  for  disability,  as  a  member  of  a pension fund or retirement system
  supported or maintained by the city, other than an excepted pension fund
  or retirement system mentioned in paragraph two of this  subdivision  a,
  and who is receiving a pension or retirement allowance by reason of such
  retirement.
    (2)  The  excepted  pension funds or retirement systems referred to in
  paragraph one of this subdivision a are the  New  York  city  employees'
  retirement  system,  the  New York city teachers' retirement system, the
  board of education retirement system of the  city,  the  police  pension
  funds  maintained  pursuant  to  subchapter  one  and  subchapter two of
  chapter two  of  this  title  and  the  fire  department  pension  funds
  maintained  pursuant  to  subchapter  one  and subchapter two of chapter
  three of this title.
    b. "Closed pension fund disability retiree". A person: (1) Who retired
  for disability prior to January first,  nineteen  hundred  eighty  as  a
  member of a pension fund or retirement system supported or maintained by
  the  city,  other  than  an  excepted  pension fund or retirement system
  referred to in paragraph two of subdivision a of this section,  and  who
  is  receiving  a  pension  or  retirement  allowance  by  reason of such
  retirement; or
    (2) Who was retired prior to January first,  nineteen  hundred  eighty
  pursuant  to  subchapter  five  of chapter five of this title and who is
  receiving an annuity by reason of such retirement.
    c. "Supplemental pension fund". The supplemental pension fund provided
  for by section 13-650 of this chapter.
    d. "Comptroller". The comptroller of the city.
    e. "Base amount". That part of the  total  annual  retirement  benefit
  (whether consisting of a pension, retirement allowance or annuity), when
  such  total  annual  retirement  benefit  is  computed  without optional
  modification, which part does  not  exceed  ten  thousand  five  hundred
  dollars.