CHSOS Examination



CHSOS CHSOS® Examination Description

The CHSOS® examination is a maximum of two hours in duration unless an extension has been requested and approved.  There are 115 questions on the examination.  All questions are multiple-choice questions with 4 options from which to select the answer.  All questions on the examination must map to at least one of the items in the CHSOS® examination blueprint (pdf).

CHSOS Scheduling an Exam

SSH does not schedule your examination, the choice of date, time, and location is the responsibility of the candidate.

When the application has been approved, SSH will notify the exam company, ISOQuality Testing, Inc (IQT).  The candidate will receive an email from IQT with instructions to schedule the exam. From date of approval and notification, there is 90 days to complete the exam. The candidate should plan to schedule to take the examination during this 90-day period of time. 

CHSOS Examination Day Requirements

Candidates should arrive at the examination location in a timely manner.  You may not be permitted to enter if you arrive late.  Candidates MUST bring the Admission Letter and a government issued photo identification (e.g. passport, driver’s license) to the examination.  The admission letter is emailed to the candidate after registering for the examination.

Sample Admission Letter (pdf)

CHSOS Testing Locations

IQT has a number of test sites located around the globe. Please go to this link to find a site near where you live or may be traveling.


SSH has worked with partners to add additional locations for testing. These locations can be found when selecting your date, time, and location to take the exams. Additional locations (currently):

  • SimOps 2019 Conference (Norfolk, VA): July 17

Additional sites will be added as determined to be appropriate.

CHSOS Exam Accommodations

If you need special accommodations to take the exam, these can be requested in the application form (on the appropriate tab).

This INCLUDES if you are requesting extended time due to English being your second language.

CHSOS Reexamination

If you were unsuccessful on the CHSE 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 retake the examination CLICK HERE and submit the request and reexamination fee. You must be logged in to the SSH system.

CHSOS Reexamination Fees

$175 USD (members of SSH and supporting organizations)
$275 USD (all others)

Questions? Email the Certification Coordinator



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