N.J. Stat. § 44:7-11
The county welfare board shall appoint a director of welfare, who shall have the qualifications herein provided. The county adjuster, when qualified, may be appointed to this office, but when so appointed shall not serve as an ex-officio member of the county welfare board.
The director of welfare shall be and hereby is classified in the competitive class of the classified service as defined and provided in Title 11, Civil Service, notwithstanding the county welfare board may not otherwise be operating under the provisions of Title 11, Civil Service. Directors of welfare hereafter appointed shall have a working test period, as otherwise defined and governed by sections 11:12-1 and 11:12-2, which shall be not shorter than six months and which shall, on request of the appointing authority, be extended for an additional period or periods not to exceed a total of twelve months including the initial period.
He shall be the clerk of the county welfare board and shall serve as such without additional compensation. He shall be the chief executive and approval officer of the county welfare board, and shall exercise all the powers pertaining thereto.
He shall be a citizen of the State and of the United States, shall be capable of making and keeping such records and reports as are lawfully required, shall have adequate knowledge of the laws concerning old age assistance and shall be a trained and qualified expert in the field of welfare service, with administrative experience therein.
The county welfare board may appoint a deputy director of welfare, who shall have qualifications necessary to the appointment of directors of welfare and be under the supervision of such director of welfare, and be vested, on approval of the county welfare board, with the same powers as the director of welfare. The deputy director of welfare shall be and hereby is classified in the competitive class of the classified service as defined and provided in Title 11, Civil Service, notwithstanding the county welfare board may not otherwise be operating under the provisions of Title 11, Civil Service.
N.J.S. § 44:7-11