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.