N.J. Stat. § 30:9-26
A maternity hospital established under section 30:9-24 of this Title shall be used exclusively for the care and treatment of persons in the county requiring the care and attention for which such hospital was intended whether such persons be indigent or nonindigent. Whenever in its judgment the public need requires, the board of chosen freeholders of the county by resolution may also authorize the establishment of a gynecologic service at such hospital for such indigent or nonindigent persons in addition to the obstetrical service. The board of managers may make reasonable charges for the care and treatment of nonindigent patients and moneys received therefor shall be turned over to the county treasurer who shall apply it to the appropriation for the maintenance of the hospital.
N.J.S. § 30:9-26