N.J. Ct. R. 4:25-4

Counsel shall, either in the first pleading or in a writing filed no later than ten days after the expiration of the discovery period, notify the court that designated counsel is to try the case, and set forth the name specifically. If there has been no such notification to the court, the right to designate trial counsel shall be deemed waived. No change in such designated counsel shall be made without leave of court if such change will interfere with the trial schedule. In Track I or II tort cases pending for more than two years, and in Track III or IV tort cases, other than medical malpractice cases, pending for more than three years, the court, on such notice to the parties as it deems adequate in the circumstances, may disregard the designation if the unavailability of designated counsel will delay trial. If the name of trial counsel is not specifically set forth, the court and opposing counsel shall have the right to expect any partner or associate to proceed with the trial of the case, when reached on the calendar. Designations of trial counsel shall presumptively expire in all Track III medical malpractice cases pending for more than three years.