§ 919. Block indices in offices of county clerks. 1. New York, Bronx,
Kings and Queens counties. a. The county clerks of the counties of New
York, Bronx, Kings and Queens shall continue to index under the proper
block numbers all instruments now required by law to be recorded in the
books of notices of lis pendens. Such block index of notice of lis
pendens shall be entitled "the block index of notice of lis pendens" and
shall be ruled for entering therein the date of filing, the nature of
the action, the nature of the instrument, the court and index number,
the first named defendant, the first named plaintiff, the lot number or
street address, if any, the microfilm number and the proceedings had.

b. The county clerk of each of such counties shall also continue to
index under the proper block numbers all statutory notices of liens or
claims on land other than lis pendens which may be filed or recorded in
his office, which index shall be entitled "the block index of liens" and
shall be ruled for entering therein the date of filing, the nature of
the instrument, the owner of the premises affected by the notice, the
name and address of the lienor by whom the claim is made, the amount,
the lot number or street address, if any, and the proceeding had.

c. On and after July first, nineteen hundred sixty-four, the use of
land maps in the offices of the clerks of the counties of New York,
Bronx, Kings and Queens shall be discontinued, and the land maps
previously in use shall remain on file for the purpose of reference. On
and after such date, the tax maps for the boroughs of Manhattan, Bronx,
Brooklyn and Queens shall be substituted for the land maps theretofore
in use for the counties of New York, Bronx, Kings and Queens, and
reference shall be had to such tax maps and to the block numbers
designated thereon for the purpose of indexing instruments required to
be indexed in the block index of notice of lis pendens or in the block
index of liens. Such tax maps shall be conclusive as to the location of
block boundaries and block number designations. The tax map for each
borough may be referred to as the land map for the particular county
which it affects.

d. Except in the counties where existing land and tax blocks are
presently identical, on and after July first, nineteen hundred
sixty-four, the indices of all blocks theretofore existing in the block
index of notice of lis pendens and in the block index of liens shall be
closed except for the purpose of completing the indexing of instruments
filed prior to such date. New block indices shall thereupon be opened
for the block index of notice of lis pendens and for the block index of
liens, which new indices shall be numbered to conform with the block
numbers designated on the tax map of the borough for the particular
county to which it relates and which shall thenceforth be used for all
entries relating to land in such blocks. The date of closing shall be
entered at the end of each block index so closed and a reference shall
be made to the block number of the corresponding block in the new block
index. All such new block indices shall be endorsed on the covers
thereof so as to show the date of the opening thereof.

e. Whenever the boundaries of any block on the tax map shall
thereafter be changed or altered and renumbered according to law, the
block indices of notice of lis pendens and of liens of such block
theretofore existing comprising the land in the changed or altered block
so renumbered as aforesaid shall, except for the purpose of completing
the indexing of instruments filed prior to such change or alteration and
renumbering be closed and discontinued and new block indices of notice
of lis pendens and of liens shall be opened for every such renumbered
block, which new index shall thenceforth be used for all entries
relating to land in such block. The date of closing shall be entered at
the end of each block index so closed and a reference shall be made to
the number of every new, changed or altered block to be used in place
thereof. The date of opening shall be entered at the beginning of every
new block index, with a reference to the number of every block before in
use for the land contained in such new block.

f. Every instrument presented to a county clerk for filing and
required to be indexed in the block index of notice of lis pendens or in
the block index of liens in order to entitle the same to be filed shall
have endorsed thereon the number of every block on the current tax map
in which the land affected by such instrument is situate.

g. The county clerk of each of such counties, so long as he deems it
expedient, may prepare alphabetical indices of the parties to the
instruments mentioned in this subdivision, or to any of them, filed in
his office, and of the owners of land against which liens have been
filed and of judgment debtors whose names appear on record. The
particular form of such alphabetical indices shall be as such county
clerk shall determine, and shall cover such periods and be brought down
to such dates as he shall direct in respect to his own office.

h. Whenever any instrument entitled to be filed and indexed under the
provisions of this subdivision shall be presented for record, there
shall forthwith be endorsed thereon the date, hour and minute of its
receipt and the same shall be entered in the proper index under the
proper block number thereof in accordance with the items set forth in
paragraph a or paragraph b hereof.

i. The entries made in the block indices of notice of lis pendens and
of liens in conformity with the requirements of this subdivision shall
for the purpose of notice be deemed and taken to be a part of the record
of the instrument to which such entries respectively refer, and shall be
notice to subsequent purchasers or incumbrances to the same extent and
with like effect as the filing of such instruments in the office of such
county clerks now is or may be notice.

j. In cases where any instrument shall have been filed with an
erroneous designation, such county clerk on presentation of proper proof
thereof shall enter such instrument in the proper index under the proper
block number of every block, the designation of which shall have been
erroneously stated. He shall at the same time make a note of such entry
and of the date thereof in every place in which such instrument may have
been erroneously indexed, opposite the entry thereof, and also upon the
instrument itself, if the same be in his possession or produced to him
for the purpose, and the record of such instrument shall be constructive
notice as to the property in any block not duly designated at the time
of such filing only from the time when the same shall be properly
indexed.