An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.


Register for the Radon-Resistant New Construction Builder Directory

To complete the Builder Directory qualification process, you must complete all of the following:

  • Answer the three questions.
  • Accept the five agreement statements. 
  • Fill in your contact information  (Company Name, Name of Contact Person, Phone Number and Contact E-mail are required).
  • Read the General Terms and Disclaimers.
  • Click the Sign Up for the Directory button at the bottom of the page to submit your information.
Select RRNC code
Please provide the RRNC building code specification you use if you selected "Other" from above.
General Statements of Agreement to Qualify for the Directory
Company Contact Information
General Terms and Disclaimers
  • The company listed in the Directory will not construe, claim, or imply that its participation in EPA's RRNC Builder Directory constitutes federal government approval, acceptance, or endorsement of anything other than the commitment of the company listed to build houses using EPA-recommended radon-resistant new construction techniques. Being listed in the Directory does not constitute federal government endorsement of the company listed or its houses or services.
  • The company listed understands that the activities it undertakes in connection with EPA's RRNC Builder Directory are voluntary and not intended to provide services to the federal government. As such, the company listed will not submit a claim for compensation to any federal agency.
  • The company listed and EPA will assume good faith as a general principle for resolving conflict and will seek to resolve all matters informally, so as to preserve maximum public confidence in EPA's RRNC Builder Directory.
  • This agreement is voluntary and can be terminated by either party at any time for any reason, with no penalty.
  • Failure to comply with any of the terms of qualification can result in the listed company’s termination and cessation of access to the benefits of EPA’s RRNC Builder Directory.
  • In marketing and promotional brochures, signage, or Web pages produced by a company listed in the Directory, EPA permits the company listed to use the following language: “Listed in EPA’s Builder Directory for Radon-Resistant New Construction (RRNC).” This agreement does not allow a builder to use the EPA seal or logo on its Web site or other promotional materials.