Our website uses necessary cookies to enable basic functions and optional cookies to help us to enhance your user experience. Learn more about our cookie policy by clicking "Learn More".
This is a collection of questions for the Class B Examination for Hazardous Materials Operators.
Includes textbook functions and glossary
You can also see the points of the exam from the web page. Please use it with the app.
By clicking the Pre-register button you're about to pre-register for upcoming apps on APKPure Mobile App Store. Pre-registering means that you will receive a notification on your device when the app is released.