Certified Occupational Hearing Conservationists Online Credential Verification

The Council for Accreditation for Occupational Hearing Conservation (CAOHC) online verification system allows the public and current and prospective employers to verify if an individual holds a current CAOHC credential.

This system can also help certified occupational hearing conservationists (OHCs) check the expiration date of their credential and ensure their information is correct.

Need a copy of your certificate?

The information in our database is a true and accurate reflection of our records derived from primary source data. While CAOHC believes the information is reliable, human or mechanical error and delays in posting or updating information are possible. If you have questions or are getting an error message, call 414-276-5338.

Cookie Notice

CAOHC may use cookies to collect, store, and sometimes track information for statistical purposes, to improve the products and services we provide, or to save your settings and to provide customizable and personalized services. These cookies do not enable third parties to access any of your personal information. Additionally, be aware that if you visit non-CAOHC Web sites where you are prompted to log in or that are customizable, you may be required to accept cookies from that provider. Third parties and other non-CAOHC Web sites may also use their own cookies. We do not control use of these cookies and expressly disclaim responsibility for information collected through them. Please see our Privacy Notice for additional details.