Ohio Revised Code Title XXXVII. Health Safety Morals § 3723.05

(1) Perform radon mitigation without the direct on-site supervision of a licensed radon mitigation specialist;

(2) Provide radon testing services other than through the employment of a licensed radon tester or mitigation specialist;

(3) Provide advice regarding radon testing, radon exposure, or health risks associated with radon exposure other than through the employment of a licensed radon tester or mitigation specialist;

(4) Provide advice regarding radon mitigation or radon entry routes other than through the employment of a licensed radon mitigation specialist.

(1) That the radon tester, mitigation specialist, or mitigation contractor was involved in the testing or provision of advice that led to the mitigation contract;

(2) The advantages of long-term testing and the value of a second opinion as ways to verify test results and to assure that the proposed mitigation is appropriate, especially when the mitigation is to be performed by the tester, mitigation specialist, or mitigation contractor that was involved in the testing or provision of advice that led to the mitigation contract.