New Jersey Statutes Title 18A. Education 18A § 28-4

a. any school nurse appointed prior to May 9, 1947 for the reason that such nurse is not the holder of such a certificate and the State Board of Examiners shall make no rule or regulation which will affect adversely the rights of any such nurse under any certificate issued prior to said date; or

b. a school athletic trainer appointed prior to the effective date of P.L. 1999, c. 87 (C.18A:26-2.4 et al.) for the reason that the school athletic trainer is not the holder of a certificate, provided that the person is registered with or licensed by the New Jersey State Board of Medical Examiners, as applicable, as an athletic trainer. That person shall be issued the new certificate without being required to meet any additional qualifications, and any periods of employment as an athletic trainer prior to the effective date of that act shall count toward the acquisition of tenure to the same extent as employment after the effective date of that act.