N.J. Stat. § 30:9-12.2
The board of freeholders of any such county establishing and maintaining a county hospital or hospitals under authority of this act shall have power to appoint a board of seven managers from the citizens of the county, irrespective of religious or political belief, of whom at least three shall be practicing physicians. Three members shall be appointed for one year, two for two years and two for three years and their successors shall be appointed for the full term of three years except that an appointment to fill an unexpired term shall be for the remainder of the term. No physician member of the board of managers shall treat patients in said institution.
Failure of a member to attend three consecutive regular meetings of the board shall cause a vacancy in his office unless his absence be excused by formal action of the board. Members of the board of managers shall receive no compensation for services but shall be allowed their actual and necessary expenses to be audited and paid in the same manner as other expenses of the hospital, by the board of chosen freeholders. A member of the board of managers may be removed by the board of chosen freeholders for cause after opportunity to be heard.
N.J.S. § 30:9-12.2