Ohio Revised Code Title XXXVII. Health Safety Morals § 3723.02

(1) No individual shall perform radon testing, or hold himself out as performing radon testing, without a valid radon tester or mitigation specialist license.

(2) No individual shall provide professional or expert advice on radon testing, radon exposure, or health risks related to radon exposure, or hold himself out as providing such advice, without a radon tester or mitigation specialist license.

(3) No individual shall provide on-site supervision of radon mitigation, or hold himself out as providing such supervision, without a radon mitigation specialist license.

(4) No individual shall provide professional or expert advice on radon mitigation or radon entry routes, or hold himself out as providing such advice, without a radon mitigation specialist license.

(5) No business entity or government entity shall perform or authorize any individual employed by it to perform radon mitigation, or hold itself out as performing radon mitigation, without a valid radon mitigation contractor license.

(1) An individual, business entity, or government entity using techniques during new construction designed to prevent or reduce radon infiltration in the new construction;

(2) An individual, business entity, or government entity performing radon tests or mitigation on a building or real property that the individual, business entity, or government entity owns or leases;

(3) An individual, business entity, or government entity practicing in accordance with section 3723.03 of the Revised Code as a radon tester, mitigation specialist, or mitigation contractor under a license issued by another state;

(4) An individual, business entity, or government entity conducting research regarding radon testing or mitigation in accordance with section 3723.04 of the Revised Code.