ยง  585.  Taxation or exemption of watershed agricultural easements. 1.
  Any watershed agricultural easement acquired before January  first,  two
  thousand  eleven shall be exempt from taxation on any assessment roll on
  which the land subject to the easement qualifies  for  and  receives  an
  agricultural  assessment  pursuant  to  article  twenty-five-AA  of  the
  agriculture and markets law.
2. Any watershed agricultural easement that burdens  land  which  does
  not   receive   an   agricultural   assessment   pursuant   to   article
  twenty-five-AA of the agriculture and markets law or which  is  acquired
  on  or  after  January first, two thousand seventeen shall be subject to
  taxation for all purposes. The taxes levied on such  easement  shall  be
  levied as provided in this title.
Structure New York Laws
Article 5 - Assessment Procedure
584 - Taxation of Watershed Conservation Easements and Watershed Agricultural Easements.
585 - Taxation or Exemption of Watershed Agricultural Easements.
586 - Assessment of Watershed Conservation Easements and Watershed Agricultural Easements.
587 - List of Watershed Conservation Easements and Watershed Agricultural Easements.