Contact Us Have a question? Looking for support for one of our training programs? Call or fill in the form below to get in touch with our teams. Center for Environmental Research and Technology – Radon Certification Education To contact us by phone: Call 800-513-8332 or 719-632-1215 Business hours: Mon-Fri 7:30AM – 4:30PM (MST) Fax: 719-836-8989 To contact us by email please complete the form below: Full Name(*) Please type your full name. E-mail(*) Invalid email address. Your Message Insert Code Read More Invalid Input CAPTCHA(*) RefreshInvalid Input Please enter the characters shown above into the box. Click “Refresh” to obtain a different set of characters if you cannot read the ones shown.