CAOHC and NIOSH Certification Courses
e3 Diagnostics Occupational Health Solutions facilitates more than 70 CAOHC & NIOSH certification and re-certification courses throughout the year. It’s important that you and your colleagues stay up to date with certifications and training to ensure that you’re always collecting accurate results.
These courses are available in many locations to make it more convenient and affordable for you and your staff to attend. However, if you have several people in your organization to certify and you would prefer a private course at your facility, please contact us!
View a list of available courses, locations, and dates

Audioscan Workshops
Join us for the “Audioscan Hands-On Verification Master Class” and take your amplification fitting and verification services to the next level. View all of our 2026 Audioscan Workshops below.
Hands‑On Evoked Potential CEU Full Day Workshop
Join us for a one-day, in-person training focused on evoked potential (EP) testing using the Interacoustics Eclipse at CalState LA.
Interacoustics Courses
Mastering Electrocochleography (ECocG)
Begins April 20
Location: Online
Pediatric Audiology Master Course
Location: Boys Town National Research Hospital, Omah, NE
Date: May 15 – 16, 2026
Vestibular Diagnostics: A Clinical and Practical Workshop
Location: Minneapolis, MN
Date: July 14 – 16, 2026
Clinical Principles of Evoked Potentials: A Comprehensive 3-Day Eclipse Workshop
Location: Minneapolis, MN
Date: July 28 – 30, 2026
