Virtual CAOHC Courses offered by Earmark Hearing Conservation are entirely online with no in-person requirements. Instruction, audiometric practicum, hearing protection device practicum, and examination are all completed through your browser. Please reach out with any questions regarding our virtual courses.
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Upcoming
CAOHC Certification Course - Co-presented with Rutgers School of Public Health
Mon, Mar 9, 2026, 9:00 AM EDT – Wed, Mar 11, 2026, 4:00 PM EDTLive virtual course (fully online)
Initial Certification (20 Hour Course)
$685
Upcoming
CAOHC Certification Course
Mon, Mar 23, 2026, 9:00 AM EDT – Wed, Mar 25, 2026, 4:00 PM EDTLive virtual course (fully online)
Initial Certification (20 Hour Course)
$385
Upcoming
CAOHC Certification Course
Tue, Apr 7, 2026, 9:00 AM EDT – Thu, Apr 9, 2026, 4:00 PM EDTLive 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 EDTLive 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 EDTLive 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 EDTLive 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 EDTLive virtual course (fully online)
Initial Certification (20 Hour Course)
$715
Upcoming
CAOHC Recertification Course
Wed, May 20, 2026, 8:00 AM – 4:30 PM EDTLive 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 EDTLive 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 EDTJohns 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 EDTLive 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 EDTLive virtual course (fully online)
Initial Certification (20 Hour Course)
$715