RMS Health & Safety Regulations in Radon Mitigation 3 — Questions and Answers
Question 1: What is the primary purpose of the EPA's 'A Citizen's Guide to Radon'?
- To certify radon contractors at the federal level
- To educate the public about radon risks and when to test and fix (Correct answer)
- To establish binding legal limits for residential radon
- To provide tax credits for radon mitigation systems
Correct answer: To educate the public about radon risks and when to test and fix
The EPA's Citizen's Guide to Radon is a public education document that explains radon health risks, testing procedures, and when to take corrective action.
Question 2: A radon professional finds that an existing sub-slab depressurization system has a fan exhausting into the building's attic. According to ANSI/AARST standards, this is:
- Acceptable if the attic is ventilated to the outside
- A code violation requiring immediate correction (Correct answer)
- Permitted only in homes built before 1990
- Compliant if radon levels are below 4 pCi/L
Correct answer: A code violation requiring immediate correction
ANSI/AARST standards prohibit exhausting radon-laden air into any occupied or semi-occupied space, including attics; discharge must be directed to the exterior.
Question 3: Which NRPP or NRSB certification credential is specifically required for professionals who both test and mitigate radon in most state programs?
- RMT – Radon Measurement Technician only
- RMS – Radon Mitigation Specialist (with separate measurement credential if testing) (Correct answer)
- General contractor license
- EPA Section 608 technician certification
Correct answer: RMS – Radon Mitigation Specialist (with separate measurement credential if testing)
Most state programs require an RMS credential for mitigation work, and if the same individual also performs testing, a separate measurement credential is typically required.
Question 4: According to EPA guidance, how soon after completing a radon mitigation system installation should a post-mitigation test be conducted?
- Immediately after fan startup
- At least 24 hours but no more than 30 days after installation (Correct answer)
- 90 days after installation
- One full year after installation
Correct answer: At least 24 hours but no more than 30 days after installation
EPA guidance recommends conducting a post-mitigation test at least 24 hours after installation, ideally within 30 days, to confirm the system is working effectively.
Question 5: Under which circumstance is a radon mitigation contractor legally required to disclose a radon test result to a third party without the homeowner's consent?
- When the buyer's real estate agent requests the result
- When required by state law or a valid legal order (Correct answer)
- When the result exceeds 20 pCi/L
- When the mortgage lender requires it for underwriting
Correct answer: When required by state law or a valid legal order
Radon test results are generally confidential client information; disclosure to third parties is only legally required when mandated by state law or a court order.
Question 6: What is the significance of the EPA's Indoor Air Quality (IAQ) Tools for Schools Program in relation to radon?
- It provides federal funding to install radon systems in every school
- It offers a framework and resources for schools to assess and manage radon and other IAQ hazards (Correct answer)
- It mandates annual radon testing in all public schools nationwide
- It exempts schools from state radon regulations
Correct answer: It offers a framework and resources for schools to assess and manage radon and other IAQ hazards
The EPA's IAQ Tools for Schools Program is a voluntary framework that helps schools identify and manage indoor air quality issues, including radon, through structured action plans.
Question 7: A homeowner asks a radon contractor if their neighbor's high radon levels legally obligate them to test. What is the correct response?
- Yes, federal law requires testing when a neighbor's levels exceed 4 pCi/L
- No, radon levels vary significantly between adjacent properties and no law mandates testing based on neighbors' results (Correct answer)
- Yes, state law always requires testing within 50 feet of a confirmed high-radon property
- No, but the contractor must report the neighbor's result to the EPA
Correct answer: No, radon levels vary significantly between adjacent properties and no law mandates testing based on neighbors' results
Radon concentrations can vary dramatically between adjacent homes due to soil conditions and building characteristics; no federal or common state law mandates testing based on a neighbor's results.
RMS Health & Safety Regulations in Radon Mitigation 3
What is the primary purpose of the EPA's 'A Citizen's Guide to Radon'?