2. As used in this act:
"Commissioner" means the Commissioner of Health.
"Narcotic drug" means any narcotic, drug, or dangerous controlled substance, as defined in any law of the State of New Jersey or of the United States.
"Patient" means a person with a substance use disorder, or who otherwise has a physical or mental impairment from the use of narcotic drugs and who requires continuing care of a substance use disorder treatment center.
"Substance use disorder treatment center" means any establishment, facility or institution, public or private, whether operated for profit or not, which primarily offers, or purports to offer, maintain, or operate facilities for the residential or outpatient diagnosis, care, treatment, or rehabilitation of two or more nonrelated individuals, who are patients as defined herein, excluding, however, any hospital or mental hospital otherwise licensed by Title 30 of the Revised Statutes.