N.J. Stat. § 44:1-57
When the buildings as constructed or altered and furnished are completed, the district welfare board shall notify the boards of chosen freeholders of each county that they are prepared to accommodate the poor of the contiguous and adjoining counties, which shall be denominated a district in the numerical order and by number as such districts are established.
The notice shall be given to each of the county adjusters and overseers within the district, and also by publication at the same time in a newspaper published and circulated in the county seat of each of the counties acting jointly for the purpose, and, thereafter, the permanent poor shall be provided for by admission to the district welfare-house as provided by law for admission to and maintenance in an almshouse or county welfare-house.
N.J.S. § 44:1-57