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Radon & Real Estate Professionals - DORA Attestation Form


  • March 26-27, 2020 -  Region 8 Radon Conference, Helena Montana - CANCELLED
  • April 19, 2020Canadian Association of Radon Scientists and Technologists – Vancouver, BC - CANCELLED
  • April 28, 2020 – Doug Kladder of CERTI - presenting Radon and the Real Estate Professional Webcast for Colorado licensed Real Estate Professionals and Appraisers
  • May 12, 2020 – Measuring and Mitigating Radon in Colorado Webcast on behalf of Radon Aware
  • November 1-3, 2020 - Nashville, TN – National Radon Conference


A Sample of the many excellent reviews and ratings from our valued students ...

♦     Mike said:  "This was an excellent course.  I went thru a different education provider during the initial licensing agreement but wish I would have known about this course then.  The level of content, supplemental resources, and the ability to go at my own pace was invaluable."   stars

♦     Alan said:  "I took this course to fulfill my continuing education credits and I'm glad I did.  There is simply so much information to remember and this course covers ALL of it!  I cannot say enough about the professionalism, completeness, and methodology of quizzes (which explain the answers gotten wrong so that you can learn from them!)"  stars

♦     Louis said:  “This was a great course. I appreciate the home page and that we can utilize this information even after completion. I really like the online course and the flexibility to complete the course. That works very well with my schedule.”   stars



Latest News

CERTI is pleased to announce 4 NEW CE Courses

MMRC pic 200 x 257

C-8-106 - Technical Review of Rn Meas and Mitig Techniques for Rn Professionals (CERTI-326)

This course covers technical aspects of radon measurement and mitigation for residential buildings as well as schools and commercial buildings. It also encompasses techniques for fixing existing structures and design parameters for the incorporation of radon control systems during the construction of homes and large buildings.  

Sponsored by the CO Dept of Public Health and Environment’s Cancer, Cardiovascular and Pulmonary Disease Grants program, this technical manual was developed utilizing over 30 years of experience that its authors and collaborators have had in dealing with radon in Colorado. The purpose for developing the document was to provide a technical resource for radon professionals, builders, engineers and architects allowing them to address radon in a logical and cost-effective manner.  Although it was written for Colorado, the techniques and approaches apply to radon wherever one may find it, which is why we have created this course for a wider application.

Gnarly 200 x 126C-16-109 - Radon Challenges - Gnarly Tales from the Field (CERTI-325)

This course goes beyond simply identifying radon measurement and mitigation challenges, but actually presents solutions using real life case studies.  It also demonstrates the use of diagnostic equipment to aid one in identifying a problem and provides downloadable tools that the student can use for estimating pressure drop in mitigation systems, air flow as well as the significance of a radon emanation source.

RMP pic 274 x 251C-16-108 - Addressing Radon in Daycare Facilities, Schools and Large Buildings (CERTI-323)

This new course was presented at the 2017 Region 8 Annual Conference is a great new 16 CE hour course - This course takes radon testing to the next logical step in developing a considered approach to addressing radon concerns that have been identified during a building survey.  Whether a survey involves a daycare facility, a school, or an administrative building, there is often a need, as dictated by the availability of resources versus the severity of the problem, to have a plan of attack.  

Course pic 1 600 x 416C-4-110 - Addressing Radon Decay Products - Another Tool in the Tool Box (CERTI-324)

This course explores from a practical standpoint how radon decay products are measured and how RDP reduction can enhance soil gas remediation by reducing radon risks to very low levels.  This course was presented at the request of the Canadian Association of Radon Scientists and Technologists at its Annual Meeting in Banff, Alberta on April 23, 2017.  Although provided to a Canadian audience it has application for radon professionals around the world.  Approved for both U.S. and Canada 4 CE credits for Measurement and Mitigation through NRPP and C-NRPP. 

Advanced courses 300 x 221

CERTI is pleased to offer two courses that are approved as prerequisites to the new AARST/NRPP Advanced Multi-Family Measurement Listing.

We also now have the new Workbook which is the required exam for this advanced listing.  This Workbook is offered as a 4 Hr CE Course that can be completed after either of the two approved prerequisite courses.

For more information click here.