Frank Wartinger, Au.D. (Course Director #496199) leads engaging CAOHC-approved certification courses for occupational health professionals who administer audiometric testing as required by OSHA, MSHA, DOD and FRA regulations. Over the last decade we have hosted 170+ courses and trained 2,000+ students from all 50 US states and 12 countries.

Click here to see what students are saying about the course!

Unique Team-Teaching Approach Earmark's CAOHC courses feature multiple engaging expert instructors, which includes CAOHC Course Directors, Doctors of Audiology, Occupational Health Nurses, and CAOHC Council Members. You can get to know each instructor through the links below:

Interactive Technology The course features advanced virtual audiometric training with simulated patients. This is made possible through a software platform developed by Earmark Hearing Conservation, which has since set the industry standard in virtual hearing training.

All inclusive Course Tuition Transparent pricing includes the exam fee and access to all available official CAOHC course materials, including the new CAOHC official online Exam Prep software.

Started No more spots available currently.

CAOHC Certification Course

Tue, Sep 22, 2026, 9:00 AM EDT – Thu, Sep 24, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
Full
Upcoming

CAOHC Recertification Course

Wed, Oct 7, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$465
Upcoming

CAOHC Certification Course

Mon, Oct 12, 2026, 9:00 AM EDT – Wed, Oct 14, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Certification Course

Mon, Nov 2, 2026, 9:00 AM EST – Wed, Nov 4, 2026, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

Tue, Nov 10, 2026, 8:00 AM – 4:30 PM EST
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
Upcoming

CAOHC Certification Course

Mon, Nov 16, 2026, 9:00 AM EST – Wed, Nov 18, 2026, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

Wed, Dec 2, 2026, 8:00 AM – 4:30 PM EST
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Mon, Dec 7, 2026, 9:00 AM EST – Wed, Dec 9, 2026, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Certification Course

Tue, Jan 12, 2027, 9:00 AM EST – Thu, Jan 14, 2027, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
Waiting List
Upcoming

CAOHC Recertification Course

Tue, Jan 19, 2027, 8:00 AM – 4:30 PM EST
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Mon, Feb 1, 2027, 9:00 AM EST – Wed, Feb 3, 2027, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Certification Course

Mon, Feb 15, 2027, 9:00 AM EST – Wed, Feb 17, 2027, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Recertification Course

Tue, Feb 23, 2027, 8:00 AM – 4:30 PM EST
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Tue, Mar 2, 2027, 9:00 AM EST – Thu, Mar 4, 2027, 4:00 PM EST
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Certification Course

Mon, Mar 15, 2027, 9:00 AM EDT – Wed, Mar 17, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Recertification Course

Tue, Mar 23, 2027, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Tue, Mar 30, 2027, 9:00 AM EDT – Thu, Apr 1, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Recertification Course

Tue, Apr 13, 2027, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Mon, Apr 19, 2027, 9:00 AM EDT – Wed, Apr 21, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Certification Course

Mon, May 3, 2027, 9:00 AM EDT – Wed, May 5, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Recertification Course

Tue, May 11, 2027, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Wed, May 19, 2027, 9:00 AM EDT – Fri, May 21, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725
Upcoming

CAOHC Recertification Course

Tue, Jun 8, 2027, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$445
Upcoming

CAOHC Certification Course

Mon, Jun 14, 2027, 9:00 AM EDT – Wed, Jun 16, 2027, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$725