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Real Estate Radon Hazard Disclosure Form

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REAL ESTATE RADON HAZARD DISCLOSURE FORM

Purpose: This form provides information known to the Seller regarding the presence of radon gas in the identified property and documents delivery of test results and mitigation information, if any. Radon is a naturally occurring radioactive gas that may accumulate in buildings. An action level of 4.0 picocuries per liter (pCi/L) is commonly used as the threshold for recommending corrective action.

Property Identification

Party Identification

Radon Testing and Results

Has a radon test been performed for this property? Yes No

If yes, Test Type: Short-term Long-term

Test Date:   Test Result (pCi/L):

Yes No

Mitigation

Is a radon mitigation system installed on the property? Yes No

Have repairs or alterations been made to the mitigation system since installation? Yes No

Seller's Statements and Disclosures

The Seller certifies the following to the best of Seller's actual knowledge as of the date of this disclosure (check all that apply):

Seller knows of radon concentrations in the property at or above 4.0 pCi/L.

Seller has no actual knowledge of radon concentrations in the property at or above 4.0 pCi/L.

Seller has provided copies of all known radon test results to the Buyer.

Buyer's Acknowledgment

The Buyer acknowledges receipt of the Seller's radon disclosure and any test results described above, and is advised of the Buyer's right to obtain independent testing at Buyer's expense.

Buyer has received copies of test results: Yes No

Remedies, Liability, and Governing Law

Remedies: If the parties' purchase agreement contemplates remediation or allocation of responsibility for radon levels that exceed 4.0 pCi/L, such remedies shall be governed by the terms of the purchase agreement. This form does not create an independent obligation to remediate unless expressly set forth in a separate agreement.

Liability: Seller's representations in this disclosure are limited to Seller's actual knowledge as of the date signed. Seller makes no warranty, express or implied, regarding future radon levels or the sufficiency of any mitigation system absent a written warranty from the installer.

Governing Law: This disclosure and any disputes concerning its interpretation shall be governed by the laws of the state in which the property is located.

Certifications

Seller certifies under penalty of perjury that the information contained in this disclosure is true and correct to Seller's actual knowledge as of the date of signature below.

Buyer acknowledges receipt of this disclosure and understands the information provided.

Seller Printed Name:

By:

Date:

Buyer Printed Name:

By:

Date:

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What the Real Estate Radon Hazard Disclosure Form Is

The Real Estate Radon Hazard Disclosure Form documents known radon test results, mitigation history, and seller statements about radon risk for a property being sold. It informs buyers about measured radon levels, any mitigation systems installed, and whether tests were performed by a certified lab or contractor. The form is typically completed by the seller or seller’s agent and is attached to the property disclosure package delivered during listing, offer, or closing, depending on state rules.

Why this disclosure matters for buyers and sellers

Accurate radon disclosure reduces legal risk, supports informed buyer decisions, and documents mitigation or testing steps; it also helps lenders and insurers evaluate property risk during transaction underwriting.

Why this disclosure matters for buyers and sellers

Who completes and reviews the Radon Hazard Disclosure

Several parties typically handle or review the form during a real estate transaction.

  • Listing agents and sellers responsible for completing material-disclosure sections and attaching test reports.
  • Buyers and buyer agents who review results during due diligence and may request retesting or mitigation.
  • Title companies, lenders, and insurers that evaluate disclosures for underwriting or closing conditions.

Clear roles and timely sharing reduce disputes and support a smoother closing.

Core elements included on a professional radon disclosure

A well-constructed Real Estate Radon Hazard Disclosure Form captures test data, mitigation details, signer attestations, and space for attachments to support transparency and compliance.

Test Results

Numeric radon reading(s) with units (pCi/L) and method used (short-term, long-term).

Test Date

Date test was performed (MM/DD/YYYY) and the measuring laboratory or contractor name.

Mitigation History

Whether mitigation was installed, description of system, and date of installation or repair.

Attestation

Seller signature affirming accuracy of provided radon information and attached documents.

Attachments

Space to attach laboratory reports, mitigation invoices, and service records for verification.

Disclosure Checkbox

Clear yes/no options for known radon conditions or unknown status requiring further testing.

Step-by-step: Completing and delivering the disclosure

Follow a consistent sequence to gather test data, complete the form, attach reports, and deliver the disclosure to relevant parties.

  • 01
    Collect Test Records: Obtain certified lab reports or contractor documentation before completing the form.
  • 02
    Fill the Form: Enter seller, property, test results, and mitigation fields accurately.
  • 03
    Attach Documents: Attach lab reports, mitigation invoices, or certificates as supporting evidence.
  • 04
    Distribute to Parties: Provide the signed disclosure to buyer, agent, lender, and title company per state practice.

Typical routing workflow for an electronic radon disclosure

An e-disclosure workflow routes the form from preparer to signers, captures signatures, and archives the completed record.

  • Prepare Document: Upload form and place required fields for signatures and dates.
  • Add Attachments: Attach lab reports and mitigation documentation to the same envelope.
  • Assign Signers: Designate seller, witness (if required), and buyer recipients in order.
  • Capture Signatures: Collect signatures with an audit trail and deliver signed copies to all parties.

Recommended digital workflow settings for radon disclosures

Use consistent template and authentication settings to ensure reliable execution and record integrity.

Field Configuration
Template Create a reusable PDF template with locked disclosure fields
Authentication Use email + SMS code or ID verification for seller attribution
Attachment Handling Require lab report upload before allowing signature completion
Audit Trail Enable full audit trail with timestamps and IP addresses

Technical considerations for e-signing and storage

Choose a platform that supports the file types, attachments, and authentication levels your transaction requires.

  • File Formats: PDF, DOCX, and scanned images supported
  • Integrations: Connects with MLS, title, or cloud storage systems
  • Authentication Options: Email, SMS, KBA, or ID verification available

Ensure the platform preserves a tamper-evident signed PDF and an immutable audit trail for closing and title review.

Common timing and deadline checkpoints

Timing varies by contract and state law; these checkpoints help parties know when disclosures and actions typically occur.

Pre-Listing Disclosure:

Provide known radon information when listing the property if local law requires.

Prior to Contract Acceptance:

Deliver disclosures during offer or negotiation so buyers can assess risk.

Due Diligence Period:

Buyer may request additional testing within agreed inspection/contingency timeframes.

Mitigation Before Closing:

If mitigation is required, schedule installation and documentation before closing when practical.

Record Retention:

Keep signed disclosure and attachments for the retention period applicable to property records.

Security and compliance features to expect when using e-signature platforms

In transit: TLS 1.2/1.3 encryption
At rest: AES-256 encryption
Regulatory: ESIGN and UETA compliant
Privacy: HIPAA available with BAA
Auditability: Detailed audit trail and timestamps
Standards: SOC 2 Type II and ISO 27001

Common preparation errors to avoid

  • Missing or incomplete test reports attached to the disclosure increase buyer disputes and delay closings.
  • Entering test dates in inconsistent formats causes confusion and may invalidate the stated currency of results.
  • Failing to indicate whether mitigation was performed leaves buyers uncertain and can trigger last-minute negotiation.
  • Using unsigned or image-only signatures without an audit trail undermines legal enforceability in some jurisdictions.

Potential legal and transactional risks from incorrect disclosure

Contract rescission: Buyer may cancel sale
Monetary damages: Liability for repair or indemnity
Closing delays: Escrow hold or lender conditions
Title issues: Impact on title insurance acceptance
Regulatory fines: State penalties where disclosure statutes apply
Reputation harm: Agent or seller credibility loss

Real-world examples of using the disclosure in transactions

These brief examples show how sellers and brokers integrate radon disclosures into closing workflows.

Martin Properties — Tim Martin, Founder

Tim Martin used an online disclosure workflow to attach test reports and collect signatures remotely

  • The workflow reduced in-person appointments
  • As a result, the company completed disclosures, preserved audit trails, and avoided closing delays while maintaining compliance and record integrity.

Optica Ventures — Brian Fitzgibbons, COO

Optica Ventures standardized a disclosure template with fields for test values and mitigation receipts

  • Template enforced attachments
  • Standardization made it easier for buyers and title officers to verify radon history and facilitated smoother closings across multiple properties.

Practical tips for accurate and efficient disclosure completion

Follow these practices to reduce errors, speed review, and preserve evidentiary value of the disclosure.

Use certified lab reports
Always attach a lab- or contractor-signed test report; uncertified results are more easily contested and may not meet lender or buyer requirements.
Standardize date formats
Enter all dates as MM/DD/YYYY and ensure test dates reflect the sampling period; inconsistent formats increase the chance of misinterpretation.
Record mitigation proof
Include invoices, installation certificates, and any contractor warranties to document mitigation effectiveness and service history.
Preserve the audit trail
Use an e-signature platform that captures timestamps, signer attribution, and IP information to support enforceability and closing review.

How this disclosure differs from related forms

Compare the radon disclosure to other property condition and environmental forms to avoid duplication and ensure clarity for buyers.

Document Radon Disclosure General Property Disclosure
Focus radon-specific test data broad condition statements
Attachment lab report recommended photographs or repair receipts
Typical Trigger known radon testing or mitigation any material defects
Use at Closing

Typical e-signature pricing comparison for housing disclosure workflows

Common vendors and starting prices for e-signature plans used for real estate disclosures are shown below; feature availability varies by plan and vendor.

signNow DocuSign Adobe Sign PandaDoc HelloSign
Starting Price $8/user/mo $15/user/mo $14/user/mo $19/user/mo $15/user/mo
Free Trial 7-day free trial Varies Varies Varies Varies
Bulk Send Yes Yes Yes Yes No
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Frequently asked questions about the Radon Hazard Disclosure

Answers to common issues when completing or submitting the disclosure, including signature, testing, and recordkeeping concerns.


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