N.J. Stat. Ann. § 40:63-89

The joint meeting shall provide a proper meeting room in which to hold its meetings, and shall make provisions for proper rooms or buildings for the transaction of its business and the accommodation of its officers, agents and servants, and may contract for the payment of the rent of any such meeting room, offices or other rooms or buildings necessary for its business and for the safe-keeping of its property and the accomplishment of its object.