ยง 51. Interchange of appropriations or items therein. No appropriation
  shall  be  increased  or  decreased  by  transfer or otherwise except as
  provided for  in  this  section  or  section  fifty-three,  sixty-six-f,
  seventy-two  or  ninety-three  of  this chapter, or article eight of the
  education law. Whenever an appropriation  is  made  from  a  fund  to  a
  department  or  agency  and  is  accompanied  by  a schedule showing the
  programs or purposes for which such appropriation may be  expended,  the
  amount  appropriated for any item or items within any program or purpose
  for  such  department  or  agency  may  be  increased  or  decreased  by
  interchange  with amounts appropriated from such fund for any other item
  or items within the  same  program  or  purpose,  or  with  other  items
  appropriated from such fund not in the same program or purpose but which
  are contained in the state comptroller's classification of items as last
  promulgated,  with the approval of the director of the budget, who shall
  file such approval with the office of the state comptroller  and  copies
  thereof  with  the  senate  finance  committee and the assembly ways and
  means committee. The amounts appropriated to a department or agency from
  a particular fund in a fiscal year for the programs or purposes of  such
  department or agency may be interchanged among such programs or purposes
  under  the same conditions as heretofore described except that the total
  amount appropriated for any program or purpose may not be  increased  or
  decreased  by more than the aggregate of five per cent of the first five
  million dollars, four percent of the second  five  million  dollars  and
  three  per  cent  of  amounts  in  excess  of  ten million dollars of an
  appropriation for a program or  purpose.  The  allocation  of  lump  sum
  appropriations  from  a  fund  made  to a department or agency for later
  distribution to programs or purposes  or  to  the  units  of  the  state
  university  to  the  allocation  of  lump sum appropriations made to all
  state  departments  and  agencies  for  later  allocation  for  specific
  programs  or  purposes  shall  not  be  deemed  to be part of such total
  increase or decrease.
Structure New York Laws
40 - Period for Which Appropriations Made.
41 - Indebtedness Not to Be Contracted Without Appropriation.
42 - Limitation on Expenditures.
43 - Specific Appropriations Limited as to Use; Certain Appropriations to Be Specific.
44 - Appropriations for Personal Service; General.
48 - Travel Expenses for Officers and Employees.
49 - Segregation of Lump Sum Appropriations.
50 - Transfers of Appropriations.
51 - Interchange of Appropriations or Items Therein.
52 - Classification of Expenditures.
53 - Special Emergency Appropriations.
53-A - Filing of Notices of Applications for State Participation in Certain Federal Programs.