New Jersey Statutes Title 13. Conservation and Development Parks and Reservations 13 § 1K-14

a. The Department of Environmental Protection shall, upon a determination after inspection and testing that the premises of any residential property are not significantly contaminated with radon gas or radon progeny and require no remedial action, provide the owner of the property with written certification that, as of the date of the testing, any radon gas or radon progeny contamination present was within acceptable limits as established by the United States Environmental Protection Agency and the department.

b. The department shall, upon completion of any project undertaken to remove radium from any residential property and to remedy excessive levels of radon gas or radon progeny therefrom, provide the owner of the property with written certification that, as of the date of the completion of the project, any radon gas or radon progeny contamination present was within acceptable limits as established by the United States Environmental Protection Agency and the department.

c. The costs incurred by the department in providing the certifications required by this section shall be covered by sums which may be appropriated or otherwise made available to the department to remedy radon gas or radon progeny contamination.