CAOHC COURSE RESOURCES
Welcome to your CAOHC course resource page.
If you are currently scheduled to attend a course, click on the button “Enter Online Classroom” to join the session.
Note that the online classroom is only active during course hours, and you must be registered for the active course to attend. Misuse of the course classroom link will not be tolerated.
CAOHC Course Resources
Below you will find downloads and other information your course director made available for your course.
Note: many of the downloadable items were included in your course material shipment along with your desk reference book. Please download each file using the links below if you would like an electronic copy of the documents.
Course Downloads
Click here to download the full Course Materials Pack. Included in the packet are the following individual pages:
Audiometric Follow Up Steps Worksheet [click here to download .docx file]
STS Calculation Worksheet
The following worksheet is not included in your packet and may be downloaded if you would like additional study organization materials:
Key Terms Worksheet - Comparison of Hearing Conservation Regulations
VIDEO RESOURCES
All video presentations included in the course content are available at the bottom of this website. Please avoid sharing these videos in public forums (youtube, social media, etc)
ONLINE STUDY RESOURCES
NIOSH “Inquiring Ears Want To Know” Fact sheet explaining hearing testing to workers
CAOHC / OSHA Alliance brochure: Recordability on the OSHA Form 300
OSHA Small Business Safety and Health Handbook (in English) (en Español)
The following are free resources available for your self-directed study. These are made by independent third party organizations. Note: the content does not necessarily reflect the exam curriculum or the structure of the Earmark Hearing Conservation course. Please use at your discretion and without the direct endorsement of Earmark Hearing Conservation.
*Practice Quiz *Note: this quiz does not accurately reflect the format of the CAOHC exam or curriculum. Students and instructors have reported inaccuracies as well. You’ve been warned.
Online Exam Instructions
Follow this link for the official OHC Online Exam Guide
Please follow the steps outlined by your course director to register for the exam on the CAOHC website.
Please write down your CAOHC.org username/password. You will use the same login credentials to access the exam.
At the time of the exam, your course director will ask you to login to the CAOHC Learning Center.
It is recommended that students use Google Chrome or Mozilla Firefox browsers. Microsoft Internet Explorer and Edge web browsers are not compatible with the CAOHC examination software.