Download the CHSOS Examination Blueprint (pdf), the basis for all exam questions.
Examination Preparation References (pdf) is a list of references to help you prepare for the examination. This is a partial list of items used as references for writing the items on the examination.
A short practice examination has been written by the same individuals who wrote the CHSOS exams. It is a short 30 question exam that is mapped to the same large domains as the full exam. After you have taken this test, you can go and see which questions you answered correctly and which ones you did not. In addition, each item has had rationales written to help you gain insight into why answers are correct. This is a great tool! There is a $75 (USD) charge to take the practice exam, and it remains available to you for 30 days after you sign up to take it.
Download the instructions on how to get signed up to take a Practice Exam.
You must be logged in to the SSH System. If you are not an SSH member, you will need to create a profile (membership is not required to become certified however). In your profile click the application link and follow the instructions in the downloadable instructions.
When your application and references have been approved, we will notify the exam company. You will receive an email from ISO-Quality Testing, Inc. with instructions to schedule your exam. You have 90 days to complete the exam. You will be able to choose the date and location of your exam.
• Sample Admission Letter (pdf)
Iso-Quality Testing, Inc., has testing centers located in many places throughout the world. To find locations near you or where you may be traveling, please go to this webpage: Testing Locations
If you need special accommodations to take the exam, please email the Request for Accommodation Form to firstname.lastname@example.org.
If you were unsuccessful on the CHSOS exam, you make take it again. Candidates may take the examination once every 90 days, and no more than four (4) times in a calendar year. Use the information from the previous exam to determine what further study you need.
In order to re-take the examination click here and submit the request and reexamination fee. You must be logged in to the SSH system.
$175 USD (SSH members)
$275 USD (all others)