N.J. Stat. Ann. § 18A:66-171

Those faculty members, who are ineligible for participation in the alternate benefit program, and all other employees of all of the public institutions of higher education in the State, except physicians and dentists holding employment in positions titled intern, resident or fellow on or after the effective date of this amendatory act, shall be enrolled in the Public Employees' Retirement System if they are otherwise eligible. Such eligibility shall extend to all part-time faculty members whose services have been renewed for the succeeding school year.