C-12-103 - Advanced Rn Measurements for Multi-Family and other Large Bldgs (CERTI-601)

With the expanding need for radon measurements in apartment buildings as is now required by HUD, students taking this course will learn about the different approaches for testing apartment buildings, as well as, the additional complexity involved with working with tenants as well as clients. 
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Using both US EPA protocols and the newly created AARST Multi-Family Measurement protocols, students completing this course will have the tools to expand their radon measurement into this growing segment of the radon industry.  The skills taught in this course will also be applicable for those wishing to test schools and administrative buildings. Students have access to survey tools such as test logs, testing notices and other resources to help enter this market.  Updated 2021

Note: your name, email address and an indication of passage of this course may be shared with national or state certification agencies for verification of completion.

Course Includes:

  • Video
  • Course Manual
  • AARST/ANSI Protocols - electronic copy
  • Online Quizzes
  • Downloadable Course Certificate
  • 12 Category 1 CE Credits


  • Download/Streaming - No course materials will be shipped - everything you need is available to access and download online.


Wednesday, 22 March 2023
Donald said: Very informative! Enjoyed the course.
Chuck Crudele
Tuesday, 21 March 2023
Brandi said: Informative!
Jim Keister
Tuesday, 21 March 2023
Alyson said:
Thursday, 16 March 2023
Meaghan said: The course was great.
Wednesday, 15 March 2023
Cole said: Great course.
Wednesday, 15 March 2023
Trent said: Very Informative!
Tuesday, 14 March 2023
Emily said: The course helped refresh my memory and was very good about introducing new ideas and concepts that were helpful.
Monday, 13 March 2023
Ryan said: Course was very informative.
Monday, 13 March 2023
Ryan said: Course was very informative.
Tuesday, 28 February 2023
Emily said: I like the self paced videos
Sunday, 26 February 2023
Jerzy said:
Friday, 24 February 2023
David said: Wealth of information in an ordered fashion.
Stevan Byrd
Friday, 24 February 2023
Tina said: website could be more user friendly
Wednesday, 22 February 2023
Sean said: It was very detailed
Brian R Hanson
Monday, 20 February 2023
Larry said:
Doug Rode
Monday, 20 February 2023
John said: I missed course material that was in the test
Sunday, 19 February 2023
Bradley said: I enjoyed the conversation amongst attendees with real word experiences.
Saturday, 18 February 2023
Jim said: All good
Kevin Kostenborder
Friday, 17 February 2023
Rachel said: I learned a lot! I enjoyed the course - although I would suggest an explanation of basic construction verbage such as "plenum" and the different types of foundations at the beginning. Also, why would retesting be needed in buildings every two years if they have active mitigation systems installed? The point of the system is reduce the radon. If it's to ensure the system is still working, a quick diagnostic sample would be sufficient to determine if the system is still working. Maybe I misunderstood and that is only for buildings that had reported elevated radon levels and didn't get the mitigation systems installed?
Thursday, 16 February 2023
Ronal said: Great course
Athanasios Trastelis
Thursday, 16 February 2023
Anthony said: very good
Wednesday, 15 February 2023
Mark said: Very good.
Tuesday, 14 February 2023
Drew said: Very informative
Friday, 10 February 2023
Tim said:
Mark Hatheway
Wednesday, 08 February 2023
Richard said: It serves both single family and multi unit technitions.
Monday, 06 February 2023
Tim Swackhammer
Sunday, 05 February 2023
David said: I learned a lot about tested multi-family dwellings.
Friday, 03 February 2023
Curtis said: Good videos and quizzes!
Thursday, 02 February 2023
Julia said:
Wednesday, 25 January 2023
Brian said: Great course
Kyle Ann Rochford
Wednesday, 25 January 2023
Scott said:
Ted Hodder
Monday, 23 January 2023
Brandon said: Plenty of information
Wednesday, 18 January 2023
Nate said:
Wednesday, 18 January 2023
Remington said:
Santiago Arango Garces
Thursday, 12 January 2023
Eduardo said: The sound should be better, but overall the course is very good
Wednesday, 04 January 2023
Peter said:
Myca Bruno
Saturday, 31 December 2022
John said: Great course. Very informative.
Friday, 30 December 2022
Nathan said:
Friday, 30 December 2022
Michelle said: The slides were helpful
Wednesday, 28 December 2022
Melissa said:
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