N.J. Stat. Ann. § 26:3-1

There shall be a board of health in every municipality in this state, which board shall consist of members appointed or designated, or both, as provided by this chapter, except that in any municipality operating under laws establishing a form of government for such municipality under which the full powers of a local board of health can not be exercised by a local board of health so appointed or designated, the respective functions of a local board of health shall be exercised by such boards, bodies, or officers as may exercise the same according to law.