(1)  when  the  lease  contract is made if the lease contract is for a
lease of goods that are existing and identified;
  (2) when the goods are shipped, marked, or otherwise designated by the
lessor as goods to  which  the  lease  contract  refers,  if  the  lease
contract  is  for a lease of goods that are not existing and identified;
or
  (3) when the young are conceived, if the lease contract is for a lease
of unborn young of animals.
Structure New York Laws
Part 2 - Formation and Construction of Lease Contract
2-A-202 - Final Written Expression: Parol or Extrinsic Evidence.
2-A-204 - Formation in General.
2-A-206 - Offer and Acceptance in Formation of Lease Contract.
2-A-208 - Modification, Rescission and Waiver.
2-A-209 - Lessee Under Finance Lease as Beneficiary of Supply Contract.
2-A-212 - Implied Warranty of Merchantability.
2-A-213 - Implied Warranty of Fitness for Particular Purpose.
2-A-214 - Exclusion or Modification of Warranties.
2-A-215 - Cumulation and Conflict of Warranties Express or Implied.
2-A-216 - Third-Party Beneficiaries of Express or Implied Warranties.
2-A-218 - Insurance and Proceeds.