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CAOHC

Education Courses

OHC Courses

To become a Certified Occupational Hearing Conservationist (COHC), a candidate must complete a CAOHC-approved, 20-hour course and receive a passing score on the written and practical exams given at the end of the course.

This assessment-based certificate exam covers only the information presented during the course. No prerequisites are required. Find the OHC course curriculum in the OHC Course Curriculum section.

To find a course in your area, visit the OHC Course Search Listings section to connect with a Course Director.