(a) "Building" means a publicly or privately owned structure consisting of any combination of foundations, walls, columns, girders, beams, floors and roofs, with or without other elements of appurtenances.

(b) "Business entity" means a corporation, partnership, association, firm, sole proprietorship or other entity engaged in business.

(c) "Director" means the director of the division of health.

(d) "Mitigate" means to repair or alter an existing building or design for the purpose, in whole or in part, of reducing the concentration of radon in the indoor atmosphere.

(e) "Radon" means the radioactive noble gas radon-222 and the short-lived radionuclides which are products of radon-222 decay, including polonium-218, lead-214, bismuth-214 and polonium-214.

(f) "Radon laboratory" means a business entity that offers its laboratory services for the purpose of studying air, soil samples or passive radon detection devices to determine the concentration of radon.

(g) "Radon mitigation contractor" means a business entity having at least one person licensed as a radon mitigation specialist.

(h) "Radon mitigation specialist" means a person holding a license to install or apply methods or materials to reduce airborne radon concentrations in a building or to prevent the entry of radon into the indoor atmosphere.

(i) "Radon testers" means a business entity or person licensed to examine a building, air, soil or water for the presence of radon, including taking air, soil or water samples, or the act of diagnosing the cause of radon contamination in a building.

(j) "Secretary" means the secretary of the Department of Health and Human Resources.

(k) "Test" means the act of examining a building, soil or air for the presence of radon, including taking air or soil samples, or the act of diagnosing the cause of radon contamination in a building.