2006 New York Code - Pension After Service As Commissioner Or Deputy Commissioner.

 
    § 13-612 Pension after service as commissioner or deputy commissioner.
  Any  member  who  has  performed  duty  in  the  uniformed  force of the
  department of street cleaning or sanitation for a period of twenty years
  and upwards  and  as  commissioner  or  deputy  commissioner  of  street
  cleaning  or  sanitation for a period of eighteen months or upwards, six
  months of which period must have been served  after  May  twenty-second,
  nineteen  hundred twenty-three, upon payment by him or her to the relief
  and pension fund of the department of street cleaning of three per  cent
  of his or her salary as such commissioner or deputy commissioner, as the
  case may be, from the date of his or her appointment as such to the date
  of  his  or  her retirement, may be retired by the mayor and placed upon
  the pension roll of the relief and pension fund  of  the  department  of
  street  cleaning  and  granted  an  annual  pension  equal  in amount to
  one-half the salary of commissioner or deputy commissioner as  the  case
  may  be,  at  the  time  of  such retirement. In the event that any such
  commissioner or deputy commissioner is a member of any other  retirement
  system  in the city, it is hereby directed that his or her membership be
  transferred from such other system to the relief and pension fund of the
  department of street cleaning, and that all deductions theretofore  made
  from  his  or her compensation as commissioner or deputy commissioner as
  the case may be, to  the  fund  of  such  other  retirement  system,  be
  refunded to him or her.