2010 New York Code
RPP - Real Property
Article 9 - (290 - 336) RECORDING INSTRUMENTS AFFECTING REAL PROPERTY
297 - Certified copies may be recorded.

§  297.  Certified  copies may be recorded.  A copy of a record, or of
  any recorded instrument, certified or authenticated so as to be entitled
  to be read in evidence, may be again recorded in any  office  where  the
  original  would  be  entitled  to  be recorded. Such record has the same
  effect as if the original were so recorded. A copy of  a  conveyance  or
  mortgage  affecting  separate  parcels  of  real  property  situated  in
  different counties, or of the record of such conveyance or  mortgage  in
  one of such counties, certified or authenticated so as to be entitled to
  be  read  in  evidence,  may be recorded in any county in which any such
  parcel is situated, with the same effect as if the  original  instrument
  authenticated  as  required  by  section  three  hundred and ten of this
  chapter were so recorded.