N.Y. Civil Practice Law & Rules § 4109: Peremptory challenges

§ 4109. Peremptory challenges. The plaintiff or plaintiffs shall have

a combined total of three peremptory challenges plus one peremptory

challenge for every two alternate jurors. The defendant or defendants

(other than any third-party defendant or defendants) shall have a

combined total of three peremptory challenges, plus one peremptory

challenge for every two alternate jurors. The court, in its discretion

before the examination of jurors begins, may grant an equal number of

additional challenges to both sides as may be appropriate. In any case

where a side has two or more parties, the court, in its discretion, may

allocate that side's combined total of peremptory challenges among those

parties in such manner as may be appropriate.