OHC Certification and Training

How to Become Certified as an OHC

To become a Certified Occupational Hearing Conservationist (COHC), a candidate must complete the Council for Accreditation in Occupational Hearing Conservation (CAOHC)-approved, 20-hour certification course and pass the accompanying exam. There are no prerequisites for this course. Exam questions reflect only information presented in the course.

For a full review of the course curriculum and domains tested, visit the OHC Course Curriculum section.

COHC Training Courses

Training courses are held nation-wide with some international courses and can be found under OHC - Find a Course.

Registration fees vary by location and Course Director.

To become a Certified Occupational Hearing Conservationist (COHC), a candidate must complete the CAOHC-approved, 20-hour course and receive a passing score on the exam given at the end of the course. This assessment-based certificate exam covers only the information presented during the course.

You can search for an OHC course by state, country, month, year or Course Director (CD) name. You can leave any field blank or select non-US countries from the state list by scrolling to the bottom of the menu. For a map of all courses and locations, click here. To register for an OHC course, contact the Course Director. CAOHC does not manage registration for individual courses.

Courses listed on this website are CAOHC-approved. Upon completion of the course, you are eligible for OHC certification. To complete the certification process, your Course Director (CD) submits your application and fee to CAOHC. For more information on certification, click here. To read the OHC Course Curriculum click here.

OHC Course Search

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