New York Consolidated Laws, Civil Practice Law and Rules - CVP § 904. Notice of class action

I. the cost of giving notice by each method considered

II. the resources of the parties and

III. the stake of each represented member of the class, and the likelihood that significant numbers of represented members would desire to exclude themselves from the class or to appear individually, which may be determined, in the court's discretion, by sending notice to a random sample of the class.

(d) I. Preliminary determination of expenses of notification.  Unless the court orders otherwise, the plaintiff shall bear the expense of notification.  The court may, if justice requires, require that the defendant bear the expense of notification, or may require each of them to bear a part of the expense in proportion to the likelihood that each will prevail upon the merits.  The court may hold a preliminary hearing to determine how the costs of notice should be apportioned.

II. Final determination.  Upon termination of the action by order or judgment, the court may, but shall not be required to, allow to the prevailing party the expenses of notification as taxable disbursements under article eighty-three of the civil practice law and rules.