(b)  Notwithstanding  the  provisions  of  subparagraph  (a)  of  this
subdivision,  the city of New York may also issue refunding bonds (i) if
the bond to be refunded contains a covenant referring to  the  existence
of  the New York state emergency financial control board for the city of
New York or any other covenant relating to matters other than the prompt
payment of principal and interest on the obligation when  due,  and  the
refunding  bond  omits or modifies any such covenant or (ii) if the bond
to be refunded is guaranteed by the federal government.
  (c)  Notwithstanding  the  provisions  of  subparagraph  (a)  of  this
subdivision,  in  the case of refunding bonds sold to the New York state
environmental facilities corporation and purchased for  deposit  in  the
water  pollution  control revolving fund established pursuant to section
twelve hundred eighty-five-j of the public authorities law and for which
an allocation has been established pursuant to section  17-1909  of  the
environmental conservation law, the present value of the projected total
allocation  payable to the issuer of the refunding bonds or available to
make principal and interest payments on the  refunding  bonds  shall  be
subtracted from the present value of the total payments of the principal
and  interest  to  become  due on the refunding bonds in determining the
present value savings attributable to the  issuance  of  such  refunding
bonds pursuant to subparagraph (a) of this subdivision.
  (d)  Notwithstanding  the  provisions  of  subparagraph  (a)  of  this
subdivision, in the case of refunding bonds sold to the New  York  state
environmental  facilities  corporation  and purchased for deposit in the
drinking water revolving fund established  pursuant  to  section  twelve
hundred  eighty-five-m  of  the  public authorities law and for which an
allocation has been  established  pursuant  to  section  eleven  hundred
sixty-two  of  the public health law, the present value of the projected
total allocation payable  to  the  issuer  of  the  refunding  bonds  or
available to make principal and interest payments on the refunding bonds
shall  be subtracted from the present value of the total payments of the
principal  and  interest  to  become  due  on  the  refunding  bonds  in
determining  the  present  value savings attributable to the issuance of
such refunding bonds pursuant to subparagraph (a) of this subdivision.
  (e)  Notwithstanding  the  provisions  of  subparagraph  (a)  of  this
subdivision,  a school district may also issue refunding bonds to refund
bonds if the bonds were issued by a school district  prior  to  December
first two thousand one, or prior to thirty days after the effective date
of  this  subdivision,  whichever is later, for the purpose of financing
facilities that were eligible for building aid pursuant  to  subdivision
six  of  section  thirty-six  hundred  two of the education law, and for
which the  aid  apportionment  payable  in  the  two  thousand  two--two
thousand  three  and  two thousand three--two thousand four school years
for approved expenditures for debt service are subsequently reduced as a
result of the application of assumed amortization  to  unpaid  principal
outstanding as of July first, two thousand two.
  3.  Refunding  bonds  may  be  issued  at  any  time subsequent to the
issuance of the bonds to be refunded.
  c. 1. The last installment of each separate series of refunding serial
bonds, and the maturity date of any refunding sinking fund bonds,  shall
occur  not  later  than the expiration of the maximum period of probable
usefulness permitted by law at the time of the issuance of the refunding
bonds or the bonds to be refunded for the object or  purpose  for  which
such  bonds  to  be  refunded  were  issued,  or in the alternative, the
weighted average remaining period of probable usefulness of the  objects
or  purposes  (or  classes  of  objects  or purposes) financed with each
series of bonds to be refunded or the weighted average remaining  period
of probable usefulness of all objects or purposes (or classes of objects
or  purposes) financed with all of the bonds to be refunded. Such period
shall be computed from the date of issuance of such bonds to be refunded
or from  the  date  of  the  first  bond  anticipation  note  issued  in
anticipation thereof, whichever date is the earlier.
  2.  The  first  installment of each separate series of refunding bonds
shall mature not later than the date of the first stated maturity of the
bonds to be refunded next following the date of issue of  the  refunding
bonds.   When  the  finance  board  has  determined  to  provide  for  a
substantially level or declining annual debt service  schedule  for  the
refunding bonds, as provided in subdivision three of this paragraph, the
determination  of  whether annual debt service is substantially level or
declining shall not take into account the year which includes the  first
principal  installment  of  the refunding bonds, provided that the first
principal installment, when added to  the  amount  of  interest  payable
within one year of its accrual that would accrue on the entire refunding
debt or series of refunding bonds in one calendar year, shall be no more
than  five  percent  less  than  the  greatest  aggregate amount of debt
service due in any other year.
  3. No annual installment of each separate series  of  refunding  bonds
shall  be  more  than  fifty  per centum in excess of the smallest prior
installment  unless  the  finance  board  of  the  municipality,  school
district or district corporation issuing the bonds has determined to use
a  substantially level or declining annual debt service schedule for the
refunding bonds. The amounts of annual  installments  of  the  refunding
bonds  may  be  determined without reference to the stated maturities of
the bonds to be refunded.
  4. In the event the bonds to be refunded  were  separately  authorized
for  different  objects  or  purposes, which separately authorized bonds
were consolidated for purposes of  sale  and  sold  as  a  single  issue
pursuant to paragraph c of section 57.00 of this chapter, each component
issue  included  in  such  consolidated  issue  shall be considered as a
separate issue for the purposes of the provisions of  subdivisions  one,
two and four of this paragraph, notwithstanding that the refunding bonds
are sold as a single issue.
  5. Refunding bonds may be issued as two or more separate series.
  d.  Bond anticipation notes shall not be issued in anticipation of the
sale of refunding bonds.
  e. The issuance of refunding bonds shall be authorized by a "refunding
bond resolution". Such a resolution  shall  contain,  in  substance,  at
least the following:
  1.  The  maximum  amount  of  refunding  bonds authorized to be issued
pursuant thereto.
  2. A  determination  that  such  maximum  amount  of  refunding  bonds
authorized  to  be  issued  does  not  exceed  the limitation imposed by
subdivision one of paragraph b of this section.
  3. The amount and  a  description  of  the  outstanding  bonds  to  be
refunded.
  4. A statement of the maximum period or periods of probable usefulness
permitted by law at the time of the issuance of the bonds to be refunded
for the object or purpose or objects or purposes for which such bonds to
be refunded were issued.
  5.  The financial plan for the refunding proposed, showing the sources
and amounts of all moneys required to  accomplish  such  refunding,  and
except  where  such  refunding  bonds are issued by the city of New York
pursuant to subparagraph (b) of subdivision two of paragraph b  of  this
section  an  estimate  of  the  present  value of the total debt service
savings anticipated, computed in accordance  with  subparagraph  (a)  of
subdivision two of paragraph b of this section.
  f.   1.   Any  refunding  bonds  issued  to  refund  bonds  which  are
additionally secured by a pledge of any specific moneys pursuant to  any
general  or  special  law,  at  the  option of the finance board, may be
additionally secured to the same extent and in the same  manner  as  the
bonds  to be refunded effective upon the date of issue of such refunding
bonds, subject only to any rights of the holders of  such  bonds  to  be
refunded.
  2.  Refunding  bonds may be sold at either public or private sale, but
they shall not be  sold  on  option  or  on  a  deferred  payment  plan,
provided,  however,  that  if  such  bonds are sold at private sale, the
terms and conditions of  such  sale  shall  be  approved  by  the  state
comptroller. Refunding bonds sold at private sale shall bear interest at
such  rate  or  rates,  not exceeding the maximum rate, if any, fixed by
paragraph b of section 57.00 of this chapter, as may  be  determined  by
the  finance  board.  Refunding  bonds  may be sold at private sale at a
discount in the same manner as authorized  by  paragraph  e  of  section
57.00  of  this  chapter. The cost of such discount, together with other
costs of the issuance of obligations, shall be deemed a part of the cost
of the objects or purposes for which such obligations are issued.
  g. Except where such refunding bonds are issued by  the  city  of  New
York  pursuant  to subparagraph (b) of subdivision two of paragraph b of
this section, no refunding  bonds  shall  be  issued  pursuant  to  this
section  unless  the chief fiscal officer of the issuer shall have first
filed with the finance  board  a  certificate,  approved  by  the  state
comptroller,  which  shall  be  final  and  conclusive upon all parties,
setting forth the present value of the total debt service savings to the
issuer resulting from the issuance of the refunding  bonds  computed  in
accordance with the provisions of subparagraph (a) of subdivision two of
paragraph  b of this section, except that the actual amount, rather than
an estimate, of the amount of accrued interest to be paid on such  bonds
shall  be  used  in determining the effective interest cost thereof. The
certificate shall be in the form and shall contain such  information  as
shall  be prescribed by the state comptroller. The certificate shall not
be approved until ten days after the filing of such certificate  in  the
office of the state comptroller.
  h.  1.  Prior  to  the  issuance of refunding bonds, the finance board
shall adopt a resolution electing to call in and redeem such portion  of
the  bonds  to  be  refunded as is to be called for payment prior to the
date of their maturity in accordance with the refunding financial  plan.
The  resolution  adopted  pursuant to this paragraph shall authorize and
direct  the escrow holder to cause notice of such call for redemption to
be given in the name of the issuer of such refunding bonds in the manner
and within the times provided by paragraph a of section  53.00  of  this
chapter.  If the issuer has no official newspaper, such resolution shall
designate  a   newspaper   having   general   circulation   within   the
municipality, school district or district corporation for the purpose of
giving such notice.
  2.  Upon  the issuance of the refunding bonds, the election to call in
and redeem the bonds to be refunded and  the  direction  to  the  escrow
holder  to  cause notice thereof to be given contained in the resolution
adopted pursuant to subdivision one  of  this  paragraph,  shall  become
irrevocable,  and  the  provisions of such resolution shall constitute a
covenant with the holders of such refunding bonds,  provided  that  such
resolution may be amended from time to time as may be necessary in order
to  comply  with  the publication requirements of paragraph a of section
53.00 of this chapter.
  i. 1. The finance board, or the chief fiscal officer  if  the  finance
board  shall  delegate  such  duty  to  him,  prior  to  the issuance of
refunding bonds, shall contract on behalf of the issuer with a  bank  or
trust  company  located  and authorized to do business in this state for
the purpose of having such bank or  trust  company  act  as  the  escrow
holder  of the proceeds, inclusive of any premium, from the sale of such
refunding bonds, together with all income derived from the investment of
such proceeds, and any other moneys to be provided  by  such  issuer  to
effectuate  the  refunding  financial  plan.  Each escrow contract shall
contain such terms and conditions as shall  be  necessary  in  order  to
accomplish the refunding financial plan, including, without limiting the
generality  of  the  foregoing, provisions for the escrow holder without
further authorization or direction from  the  issuer  of  the  refunding
bonds,  except  as  otherwise provided therein, (a) to make all required
payments  of  principal,  interest  and  redemption  premiums   to   the
appropriate paying agent with respect to either the bonds to be refunded
or  the refunding bonds, (b) to pay costs and expenses incidental to the
issuance of the  refunding  bonds,  including  the  development  of  the
refunding  financial plan, and of executing and performing the terms and
conditions of the escrow contract and all of its fees and charges as the
escrow holder, (c) at the appropriate time or times to cause to be given
on behalf of such issuer the notice of redemption authorized to be given
pursuant to paragraph h of this section, and (d) to  invest  the  moneys
held  by  it  consistent  with the provisions of the refunding financial
plan. Each escrow contract shall be irrevocable and shall  constitute  a
covenant with the holders of the refunding bonds to which it relates.
  2.  The proceeds, inclusive of any premium, from the sale of refunding
bonds, immediately upon receipt, shall be placed in escrow by the issuer
with the escrow holder in  accordance  with  the  escrow  contract.  All
moneys  held  by  the  escrow  holder  shall  be invested only in direct
obligations of the United  States  of  America  or  in  obligations  the
principal of and interest on which are unconditionally guaranteed by the
United  States  of America, which obligations shall mature or be subject
to redemption at the option of the holder thereof  not  later  than  the
respective  dates  when such moneys will be required to make payments in
accordance with the refunding financial plan. Any such moneys  remaining
in  the  custody  of  the  escrow holder after the full execution of the
escrow contract shall be returned to the issuer of the  refunding  bonds
and  shall  be applied by such issuer to the payment of the principal of
or interest on the refunding bonds then outstanding, to the  payment  of
any  amounts  required  to  be  paid  to the United States of America in
connection with the refunding or to the payment of or reimbursement  for
the  costs  of  issuance  or  other  administrative  costs  incurred  in
connection with the issuance of the refunding bonds.
  3. That portion of such proceeds from the  sale  of  refunding  bonds,
together  with  interest  earned  thereon and any moneys on deposit in a
sinking fund established for the refunded bonds which is applied to  the
payment  of the principal and interest on the refunded bonds pursuant to
subdivision one of paragraph b of this section, which shall be  required
for  the  payment  of  the  principal of and interest on the bonds to be
refunded, including any redemption  premiums,  in  accordance  with  the
refunding  financial plan, shall be irrevocably committed and pledged to
such purpose and the holders of such bonds to be refunded shall  have  a
lien  upon  such  moneys  and the investments thereof held by the escrow
holder. All interest earned from  the  investment  of  such  moneys  not
required  for  such  payments  on  the  bonds  to  be refunded, shall be
irrevocably committed and pledged to the payment of the principal of and
interest on the refunding bonds, or such portion or  series  thereof  as
shall  be  required  by the refunding financial plan, and the holders of
such refunding bonds shall have a lien upon  such  moneys  held  by  the
escrow  holder.  The  pledges and liens provided for in this subdivision
shall become valid and binding upon the issuance of the refunding  bonds
and  the  moneys  and  investments  held  by  the  escrow  holder  shall
immediately be subject thereto without any further act. Such pledges and
liens shall be valid and binding as against all parties having claims of
any kind in tort, contract  or  otherwise  against  the  issuer  of  the
refunding  bonds  irrespective  of  whether  such  parties  have  notice
thereof. Neither the refunding bond resolution, the escrow contract, nor
any other instrument relating to such pledges and liens, need  be  filed
or recorded.
  j.  The  powers granted by this section to issue refunding bonds shall
be deemed to be in addition to the provisions of section 90.00  of  this
chapter,  but none of the provisions of section 90.00 shall apply to any
refunding bonds issued pursuant to this section. All other provisions of
this chapter, not  inconsistent  with  this  section,  relating  to  the
authorization,  estoppel  from  contesting  validity, form and contents,
execution and issuance of bonds, other than refunding bonds, shall apply
to refunding bonds, except that:
  1. The provisions of section 107.00 of this chapter shall not apply to
the issuance of refunding bonds.
  2. The authorization of the issuance of refunding bonds shall  not  be
subject to a mandatory or permissive referendum.
  3.  Outstanding bonds may, with the consent of the holders thereof, be
exchanged for refunding bonds (i) if the refunding  bonds  are  to  bear
interest  at a rate equal to or lower than that borne by the bonds to be
refunded, or (ii) if, in the case of the city of New  York,  the  annual
payment  required  for  principal  and interest on the refunding bond is
less than the annual payment required for principal and interest on  the
bond  to be refunded, in each case such annual payments to be determined
by dividing the total principal  and  interest  payments  due  over  the
remaining  life  of  the  bond by the number of years to maturity of the
bond, or (iii) if, in the case of the city of New York, the bond  to  be
refunded  contains a covenant referring to the existence of the New York
state emergency financial control board for the city of New York or  any
other  covenant  relating  to  matters  other than the prompt payment of
principal and interest on the obligation when  due,  and  the  refunding
bond omits or modifies any such covenant, or (iv) if, in the case of the
city  of  New York, the bond to be refunded is guaranteed by the federal
government.
  4.  All  refunding  bonds shall contain a recital that they are issued
pursuant to this chapter, which recital shall be conclusive evidence  of
their validity and of the regularity of their issuance.
  k. The authority herein granted to authorize the issuance of refunding
bonds  shall  in  no  way  be  affected  by  the  invalidity  of  or any
irregularity in any proceedings authorizing the issuance of the bonds to
be refunded, except that refunding bonds shall not be issued  to  refund
bonds  adjudged  invalid  by  the final judgment of a court of competent
jurisdiction.