Ohio Revised Code Title XXXVII. Health Safety Morals § 3723.01

(A) “Radon” means both the radioactive, gaseous element produced by the disintegration of radium, and the short-lived radionuclides that are decay products of radon.

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

(C) “Radon test” means the act of examining 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.

(D) “Business entity” means a corporation, partnership, association, firm, sole proprietorship, or other entity engaged in business.

(E) “Government entity” means the state, a state agency as defined in section 1.60 of the Revised Code, a political subdivision, or any entity of local government.

(F) “Radon mitigation” means the application or installation of methods or materials to reduce airborne radon concentrations in a building or to prevent the entry of radon into the indoor atmosphere.

(G) “Radon laboratory” means a business entity or government entity that analyzes air, soil, water, or passive radon detection devices to determine the presence and concentration of radon in them.