Radon isn’t just a health risk — it’s a legal one too. In many Mid-Atlantic states, there are growing requirements around radon testing during real estate transactions, home inspections, and new construction.
If you’re buying, selling, building, or simply living in Virginia, Maryland, Delaware, or Washington, D.C., it’s critical to understand what’s required — and why.
What Is Radon and Why Should You Care?
Radon is a radioactive gas that seeps into homes through the ground. It’s:
- Colorless and odorless
- Linked to lung cancer (second leading cause in the U.S.)
- Present in 1 in 3 homes in some Mid-Atlantic counties
The EPA recommends mitigation when radon levels reach 4.0 pCi/L or higher, but many experts suggest considering action at 2.0 pCi/L or above.
Radon Laws by State (Mid-Atlantic Focus)
Virginia
- No mandatory testing laws for private homeowners.
- However, radon disclosure is required in certain real estate transactions.
- Builders must follow radon-resistant construction standards in high-risk zones.
Maryland
- As of October 1, 2022, landlords must disclose radon test results to tenants in counties where radon risk is higher.
- Montgomery County has additional disclosure rules for real estate.
Delaware
- No statewide law, but radon testing is strongly recommended and often included in inspections.
- New homes in high-risk counties may follow EPA building guidance.
Washington, D.C.
- Real estate professionals must disclose known environmental hazards, including radon.
- Testing is not mandated, but testing during home inspections is common practice.
Disclaimer: Always consult your state or local government for the most current legal requirements. This article is for educational purposes only.
Why This Matters for Homeowners and Buyers
Understanding your state’s radon policies is more than legal — it’s about protecting your home’s value and your family’s health.
In many cases:
- Buyers request tests as part of due diligence.
- Sellers must disclose past results.
- Landlords may need to notify tenants about radon levels.
How Radon Quote Helps
Don’t waste time trying to figure out who’s certified or trustworthy. At Radon Quote, we:
- Connect you with licensed radon testing professionals in your zip code
- Help you stay informed about regional radon data and best practices
- Deliver quotes fast — usually within 24 hours
Our platform is fast, easy, and built to help Mid-Atlantic homeowners take the first step toward safer living.
Call to Action
Whether you’re in Baltimore, Arlington, Dover, or anywhere in between — knowing your radon levels is the first step.
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