It shall be unlawful for any person or persons, except a duly licensed physician, dentist, veterinarian, nurse, hospital, sanitarium or other medical institution, or a resident physician or intern of a hospital, sanitarium or other medical institution, to have under control or possess nitrous oxide in any form unless the person obtains a written permit issued by the Department of Health; except that no person under 19 years of age shall have under his control or possess nitrous oxide.
N.J.S. § 24:6G-1