Illinois Advanced Radon Measurement Service Provider Course

Welcome to InterNACHI's free online "Illinois Advanced Radon Measurement Service Provider Course." This course is provided by our accredited college at

Take the free online course now. 

This free online course is approved for both Illinois Home Inspector Continuing Education and Illinois Radon License Continuing Education. It is also approved for Initial Qualification credits toward an Illinois Radon Professional License. Click here to view the course's approvals. For more information, visit the Illinois IEMA website

Some states regulate and certify providers of radon measurement and mitigation services. Contact your state for more information by visiting


The goal of this course is to teach the student how to perform radon measurements.

Course Objectives:

Upon successful completion of this course, the student shall be able to:

  • describe the physics of radon;
  • describe the health effects of breathing radon;
  • list the ways radon enters a home;
  • describe the testing procedures for radon;
  • follow protocols in non-real estate transactions;
  • follow protocols in real estate transactions;
  • develop and follow a quality assurance plan and implement quality control procedures;
  • properly use passive devices;
  • properly use active devices;
  • test for radon in water and how to remove radon from water;
  • list different ways to approach radon mitigation in homes;
  • install effective mitigation systems in new homes;
  • install materials and follow procedures to build radon-resistant homes;
  • inspect radon mitigation system; and 
  • abide by a Code of Ethics.

The course includes:

  • 27 InterNACHI® CE credit hours;
  • 125,570 words;
  • numerous graphics, images, illustrations, and tables;
  • 119 quiz questions in 13 quizzes;
  • 120-question InterNACHI course exam (This is not NRPP's certification exam.);
  • instant grading; and
  • a downloadable, printable Certificate of Completion.
InterNACHI® Course Example
Course #4108, Student Catalog 

Student WorkTime CalculationEstimated Clock Hour Time for the Average Student
Attendance for "Seat Time" 1# of minutes of student attendance / 5046.0
Participation in Learning Activities 2# of minutes of online student participation / 502.0
Interactivity 3# of minutes of student interactivity / 500.5
Reading the Course Text 4# of words in the course / 100 words per minute / 5025.1
Reading the Course Textbook 5# of words in the book / 100 words per minute / 50 / 212.5
Academic Engagement 6# of words in the course / 100 / 501.0
Direct Communication 7# of minutes of communication / 500.5
Instructional Video Learning 8# of minutes of video / 500.0
Reinforcement Q & A  9# of questions X 1.85 / 504.4
Writing Assignment of the Inspection  104.0 hours per assignment0.0
Writing Assignment of the Research  114.0 hours per assignment0.0
Academic Activities for an Inspection  128.0 hours for each inspection assignment0.0
Performing an Inspection  138.0 hours for each inspection0.0
Total clock hours
46.0 clock hours
46.0 InterNACHI CE Hours
4.6 CEU

Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally.

Upon completion of this course and passing the course exam, the student can download and print their own Certificate of Completion, which is auto-generated in their own name. 

The student's (InterNACHI member's) information is recorded on InterNACHI's servers for membership compliance verification, and automatically logs completion into InterNACHI's online Continuing Education log. 

Members will need their username and password.  If you have forgotten your password, CLICK HERE (instant response) or email and request it (don't forget your name). 

InterNACHI... #1 in inspection education.