N.J. Stat. § 58:11-26
Any board of health which has in its employ a licensed health officer or sanitary inspector of the first grade licensed by the State Department or a professional engineer shall issue certifications as provided in section 3 of this act if such health officer, sanitary inspector or professional engineer certifies to the board that the application and accompanying engineering data are in compliance with this act and the standards for construction hereinbefore referred to.
A board of health not having personnel as described above may issue such certification, if an applicant for certification files with the board a certificate made by a professional engineer stating that the proposed water supply system and sewerage facilities are in compliance with this act and said standards for construction.
N.J.S. § 58:11-26