New Jersey Statutes Title 34. Labor and Workmen's Compensation 34 § 5A-27

It is the intent of the Legislature that the program established by this act for the disclosure of information concerning hazardous substances to employees and the public constitute the principal program in this State. To this end, no municipality or county shall enact any law or ordinance requiring the disclosure of information about, or the identification of, hazardous substances in the workplace or the environment to the extent that the disclosure of information or identification is provided for under this act, and, further, the enactment of this act shall supersede any municipal or county law or ordinance enacted subsequent to May 11, 1983 providing for this disclosure or identification.