This is step 1 of setting up Radon Tracking in your ISN
When booking Radon test and using the Radon Calendar features you must enable each Radon user/Inspector.
To edit each users profile, navigate to Administration -- User Administration -- Actions -- Edit
Once in the user's profile, check the box This user assists in Radon related tasks. Then scroll to the bottom of the page and Save changes
Now you will be able to assign Radon related task from your Radon Calendar.