Section 13.17. Regional state park police

1. All members of any police
  force of a regional state park commission,  as  heretofore  constituted,
  shall,  unless transferred by or pursuant to any other provision of law,
  continue to be members of the park  police  force  of  their  respective
  regions, in the office.
    2. Any member who shall complete twenty-five years of total service as
  a  member  of  the New York regional state park police on or after April
  first, nineteen hundred sixty-six but who  has  not  attained  sixty-two
  years  of age at the time of completion of such period of service, shall
  be separated from such service upon attaining such age.
    3. Any member who shall attain sixty-two years  of  age  on  or  after
  April  first,  nineteen  hundred  sixty-six,  but  who has not completed
  twenty-five years of such total service at the time  of  attaining  such
  age, shall be separated from such service upon completing such period of
  service.
    4.  Any  member  appointed  on  or after April first, nineteen hundred
  sixty-five shall be separated from such service upon attaining sixty-two
  years of age.
    5. The provisions of subdivisions two, three and four of this  section
  shall  not  apply to the commanding officer or chief of any police force
  of a park region, nor to any member who  has  not  elected  and  is  not
  required  to  contribute  in  accordance  with  sections  three  hundred
  eighty-three or three  hundred  eighty-three-a  of  the  retirement  and
  social security law.