NOTE: It is important to order study materials at least two weeks prior to the start of your online review session to ensure delivery.
The CSIA Certified Dryer Exhaust Technician® ONLINE review session is offered every week. Registration closes at the end of day Friday the week prior to your selected session.
Two ways to register:
1. By phone at (317) 837-5362,
2. Choose your session to register online.
Please note: The class will be monitored Monday‐Friday. You will have access from the time you are enrolled on Monday‐Sunday evening.
About the CSIA Certified Dryer Exhaust Technician Exam
The CDET examination is composed of 50 multiple-choice questions. CSIA allows a maximum of 30 minutes for candidates to complete the test. The examination is closed book- the use of notes or reference material, including the CSIA Certified Dryer Exhaust Technician® Manual is forbidden during the examination. To become certified, applicants must attain a score of 80 percent or higher on the examination. The exam is currently available online and ready to be administered by CSIA approved proctors.
Renewing the CSIA Certified Dryer Exhaust Technician Credential
The credential must be renewed every three years. Effective May 10, 2013, to renew the CSIA Certified Dryer Exhaust Technician (CDET) credential, an individual may either complete an official CSIA CDET review course, either online or in-person, or pass the CDET exam with a proctor.