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.

Upcoming

CAOHC Certification Course

Tue, Apr 7, 2026, 9:00 AM EDT – Thu, Apr 9, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course - Co-presented with Rutgers School of Public Health

Tue, Apr 14, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$465
Upcoming

CAOHC Certification Course

Mon, Apr 20, 2026, 9:00 AM EDT – Wed, Apr 22, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Certification Course

Mon, Apr 27, 2026, 9:00 AM EDT – Wed, Apr 29, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Certification Course

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

CAOHC Recertification Course

Wed, May 20, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
Upcoming

CAOHC Certification Course

Tue, May 26, 2026, 9:00 AM EDT – Thu, May 28, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

Hybrid CAOHC Certification Course / Co-Sponsored by Johns Hopkins University

Mon, Jun 8, 2026, 9:00 AM EDT – Wed, Jun 10, 2026, 4:00 PM EDT
Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, United States
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

Tue, Jun 16, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
Upcoming

CAOHC Certification Course

Tue, Jun 23, 2026, 9:00 AM EDT – Thu, Jun 25, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

Wed, Jul 8, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
Upcoming

CAOHC Certification Course

Tue, Jul 14, 2026, 9:00 AM EDT – Thu, Jul 16, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Certification Course

Mon, Jul 27, 2026, 9:00 AM EDT – Wed, Jul 29, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

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

CAOHC Certification Course

Mon, Aug 24, 2026, 9:00 AM EDT – Wed, Aug 26, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Certification Course

Tue, Sep 8, 2026, 9:00 AM EDT – Thu, Sep 10, 2026, 4:00 PM EDT
Live virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming

CAOHC Recertification Course

Mon, Sep 14, 2026, 8:00 AM – 4:30 PM EDT
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
Upcoming

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)
$715
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)
$435
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 Recertification Course

Wed, Dec 2, 2026, 8:00 AM – 4:30 PM EST
Live virtual course (fully online)
Re-certification (8 Hour Course)
$435
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)
$715