N.J. Stat. § 5:2A-18.2
Upon the recommendation of a ringside physician, each boxer, kick boxer or combative sports participant shall be required to undergo an ophthalmological and neurological examination after each exhibition, event, performance or contest by a qualified physician or hospital designated by the council. The cost of such examination shall be borne by the promoter of the exhibition, event, performance or contest. A certified copy of the findings shall be submitted to the council and board as soon as possible after the examination. A boxer, kick boxer or combative sports participant shall not be permitted to engage in another exhibition, event, performance or contest if the council or board determines that his previous examination report is unsatisfactory or if no examination report was submitted.
N.J.S. § 5:2A-18.2