N.Y. Uniform Commercial Code § 2-508 (2026)

Section 2--508. Cure by Seller of Improper Tender or Delivery;
                  Replacement.
  (1) Where any tender or delivery by the seller is rejected because
non-conforming and the time for performance has not yet expired, the
seller may seasonably notify the buyer of his intention to cure and may
then within the contract time make a conforming delivery.
  (2) Where the buyer rejects a non-conforming tender which the seller
had reasonable grounds to believe would be acceptable with or without
money allowance the seller may if he seasonably notifies the buyer have
a further reasonable time to substitute a conforming tender.