Section 18A:20-40 - Testing for radon in public school buildinga. Except as may be provided pursuant to subsection b. of this section, every public school building used as a public school in the State shall be tested for the presence of radon gas or radon progeny at least once every five years. If the public school has been tested less than five years prior to the effective date of this act, then the test shall be performed within five years of that test and once every five years thereafter.b. The Commissioner of Education, in consultation with the Department of Environmental Protection, shall determine the extent of testing required and the locations for the testing, provided that at least every public school building used as a public school in which a child care center is operated by a nonprofit organization is tested by the school in which the child care center is operated for the presence of radon gas or radon progeny at least once every five years. The superintendent of each school district in the State, in consultation with the Department of Environmental Protection and the principal of each school to be tested, shall determine the buildings to be tested, the locations within each building to be tested, the method of testing, and the procedures concerning notification and circulation of the testing results.