Certification: Occupational Hearing Conservationist (OHC)

555 E. Wells St., Suite 1100 Milwaukee, WI 53202-3823

The Occupational Hearing Conservationist (OHC; also known as an industrial audiometric technician) can, with supervision, conduct the practice of hearing conservation including pure-tone air-conduction hearing testing and associated duties (related to knowledge gained as described in Section II below). The OHC is expected to be a key member of the Occupational Hearing Conservation Program Team. OHC skills are intended for the occupational setting and may not be applicable in nonoccupational practices.

More than two years of education or training after high school required?
Oral or Written Exam Required?
Renewal Required?
Every 5 Year(s)


The certification corresponds to a specialty within a recognized occupation. For example, Oncology Nurse and Pediatric Nurse are specialties within the nursing field, so Certified Oncology Nurse and Certified Pediatric Nurse would be classified as specialty certifications.

  • This certification is related to military occupational specialties.