New Jersey Statutes Title 30. Institutions and Agencies 30 § 9-4

If a psychiatric hospital is owned and maintained by the county, and it becomes necessary either to enlarge the hospital by the building of additions or extensions , or to erect additional buildings for the accommodation of the patients, the board of chosen freeholders or governing body of the county may, upon a resolution or ordinance, as appropriate, to be adopted by the affirmative votes of two-thirds of the full authorized membership of the board, build additions, extensions, additional building or buildings, and properly fit, furnish, and equip them.