N.J. Stat. § 45:5-6
Any member of the board may inquire of any applicant for examination concerning his qualifications, and may take testimony of anyone in regard thereto, under oath, which he is hereby empowered to administer. Upon the approval of the application for examination, each applicant shall pay to the secretary of the board a fee of $50.00 at the time of filing said application which shall be accompanied by a photograph of such applicant and shall present himself for examination at the first regular meeting of the board after such application. The fee shall not be refunded, unless from sickness or other good cause appearing to the satisfaction of the board the applicant was prevented from attending such examination. Further or subsequent examinations under such application may be given to applicants, in the discretion of the board, upon payment of an additional fee of $25.00 for every re-examination.
N.J.S. § 45:5-6