2006 New York Code - Fireproof Partition Or Fire Partition.

 
    § 263. Fireproof partition or fire partition. "Fireproof partition" or
  "fire  partition"  means  a  partition  built  of brick, or concrete, or
  reinforced concrete, or cinder block, or concrete  block,  or  tile,  or
  terra  cotta  blocks  conforming with the requirements of the board. The
  board shall determine and specify in its rules such other  materials  as
  may  be used and such requirements as are necessary for the construction
  of fire partitions and the protection of supporting metal framework.
    Each opening in any fire partition  shall  have  a  fire  door  unless
  otherwise specified by the board in its rules.