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 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 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 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 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 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 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 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 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