Colorado’s Comprehensive Radon Safety Legislation: Protecting Home Buyers and Tenants

Colorado, known for its stunning landscapes and thriving real estate market, has recently taken a significant step to safeguard the health and well-being of its residents. A new law aimed at protecting home buyers and tenants from the hidden dangers of radon has been enacted. This groundbreaking legislation requires full transparency in real estate transactions and rental agreements, ensuring that individuals are informed about radon levels in their prospective homes and have the necessary information to make informed decisions. Radon, a naturally occurring and odorless gas, poses a substantial health risk to those exposed to elevated levels. In this comprehensive exploration of Colorado’s radon protection law, we will delve into its key provisions, the dangers of radon, its impact on public health, and the potential benefits of this new legislation.

Understanding Radon: A Silent Threat

Radon is a colorless, odorless, and tasteless gas that can seep into homes and buildings through the ground. It is a radioactive gas formed naturally from the decay of uranium in soil, rock, and water. Radon is present in all 50 states, making it a nationwide concern for public health. Despite its invisible nature, radon is a formidable foe, causing significant health issues, particularly lung cancer.

Radon: A Silent Killer

Radon exposure is the second leading cause of lung cancer in the United States, responsible for an estimated 21,000 deaths annually. It is a potent carcinogen that can damage lung tissue when inhaled, leading to the development of cancer over time. While the risk is not limited to smokers, the combination of radon exposure and smoking substantially increases the risk of lung cancer. Radon-induced lung cancer is a serious and often preventable health issue, making awareness and mitigation crucial.

Colorado’s Proactive Approach to Radon Safety

Recognizing the urgent need to address the radon problem, Colorado has passed a comprehensive law designed to protect home buyers and tenants. This law is multifaceted, encompassing both real estate transactions and rental agreements, and is poised to enhance public health, transparency, and awareness.

Key Provisions of Colorado’s Radon Protection Law

  1. Radon Test Results Disclosure: The new law mandates that sellers of residential real property must inform potential buyers of any known radon test results. This provision ensures that buyers have access to critical information regarding radon levels in the property they intend to purchase.
  2. Inclusion in Contracts and Property Disclosure Forms: Sellers are required to include statements and disclosures related to radon testing, results, and mitigation services in their contracts of sale or Property Disclosure Forms. This inclusion ensures that radon is not overlooked during the real estate transaction process.
  3. Tenant Information: The law also places responsibilities on landlords. They are required to provide tenants with information about radon before signing a lease agreement. Tenants have the right to void their lease agreements if landlords fail to provide this information or take reasonable measures to mitigate elevated radon levels within 180 days (approximately 6 months).
  4. Regulatory Oversight: To ensure compliance with these provisions, the Real Estate Commission is tasked with promulgating rules regarding radon disclosure in residential real estate transactions. This regulatory oversight adds an extra layer of accountability to the law.

Implementation and Future Prospects

Colorado’s radon protection law is set to take effect 90 days after the final adjournment of the General Assembly. However, its implementation is contingent on whether a referendum petition is filed within that period. In such a case, the law would only take effect if approved by Colorado citizens at the general election in November 2024. This provision reflects the democratic process and underscores the importance of public involvement in shaping legislation.

Governor Polis’s Endorsement

Colorado Governor Jared Polis has expressed strong support for this new law, stating that it will “help inform Coloradans of the health impacts of radon and options for mitigation.” His endorsement highlights the law’s potential to positively impact public health by raising awareness and providing effective solutions for radon mitigation.

Representative Michaelson Jenet’s Perspective

Representative Dafna Michaelson Jenet, who sponsored the bill, is a staunch advocate for radon safety. She has emphasized the dangers of radon and expressed her pride in creating a bill that protects home buyers and encourages radon testing. Her dedication to this cause underscores the importance of addressing radon-related health risks in Colorado and beyond.

The Importance of Radon Testing and Mitigation

Radon testing is a critical step in safeguarding public health, especially in regions with elevated radon levels like Colorado. Testing is the only way to determine the presence and concentration of radon in a home or building. If elevated levels are detected, mitigation measures can be implemented to reduce radon exposure.

Radon mitigation typically involves the installation of ventilation systems that divert radon gas away from living spaces, preventing its accumulation. These systems are effective and relatively inexpensive, making them a practical solution for homeowners and landlords.

Benefits of Colorado’s Radon Protection Law

  1. Public Health Improvement: By requiring disclosure and information dissemination, the law empowers individuals to make informed decisions about their living spaces. This, in turn, can lead to reduced radon exposure and lower rates of radon-induced lung cancer.
  2. Transparency and Accountability: The law enhances transparency in real estate transactions and rental agreements, ensuring that radon is a prominent consideration during property transactions. This added accountability benefits both buyers and tenants.
  3. Prevention and Mitigation: By providing tenants the right to void lease agreements if landlords fail to address elevated radon levels, the law incentivizes property owners to take proactive steps in radon mitigation.
  4. Minimal Cost Implementation: One of the remarkable aspects of this law is its potential to be implemented at virtually zero cost. It primarily relies on the dissemination of information and the inclusion of radon-related disclosures in contracts and agreements.


Colorado’s new radon protection law represents a significant step forward in safeguarding the health and well-being of its residents. Radon, a silent and deadly gas, poses a substantial health risk, but it is one that can be effectively mitigated through awareness and proper measures. This comprehensive legislation ensures that individuals purchasing homes or signing rental agreements in Colorado are fully informed about radon and have the means to protect themselves and their loved ones. With the support of Governor Polis and Representative Michaelson Jenet, this law has the potential to make a profound impact on public health and safety in the state. Home buyers and tenants are encouraged to take advantage of this new law by ensuring they are informed about radon levels and taking necessary precautions. Colorado’s commitment to radon safety sets an example for other states to follow, potentially saving countless lives in the process.

Protect Your Home and Loved Ones Today

As you’ve learned about the critical importance of radon testing and mitigation, we encourage you to take proactive steps to safeguard your home and the health of your loved ones. Radon is a silent threat that can be lurking in any property, and the new radon protection law in Colorado is a significant step toward addressing this issue.

If you have any questions about radon, its dangers, or the testing and mitigation process, we’re here to help. Advanced Radon Systems is your trusted partner in radon awareness and safety. Our team of experts is dedicated to ensuring that you have the information and solutions you need to protect your family.

Whether you’re a homeowner, a prospective buyer, or a tenant, don’t hesitate to reach out to us. We offer comprehensive radon testing services and can guide you through the mitigation process if needed. Your safety is our priority, and we’re committed to helping you make informed decisions about your living spaces.

Take the first step toward radon safety by contacting Advanced Radon Systems today. You can reach us at (719) 205-6461, and our knowledgeable team will be ready to assist you with any inquiries or schedule your radon testing. Together, we can create safer and healthier homes for Colorado residents.

Don’t wait; act now to protect your home and loved ones from the hidden dangers of radon. Your peace of mind is just a phone call away.