Welcome and thank you for your interest in the Communications Operator exam. If you were redirected from another website (such as CalCareers, jobs.ca.gov, job vacancy posting, etc.) to this exam page, please click on the link below for the official exam announcement to review the scope of the exam, minimum qualifications, and other important exam information.

Official Exam Bulletin

Step 1. Submit your Examination Application (STD 678), either by mail, in person, or via email to one address listed below.

Click here for a fillable version of the Examination Application (STD 678).

Note: If you do not submit your STD 678, your exam will not be processed. Please ensure you have submitted your STD 678 prior to completing the examination. Per California Code of Regulations 174 (c) a separate application must be filed for each examination. Applications (STD 678s) filed through CalCareers for Job Advertisements are separate from the examination. 

The preferred method to apply is by emailing your STD 678 to:


Electronic signatures are acceptable.

Indicate the Classification in the “Examination(s) or Job Title for Which You Are Applying” field on your Examination/Employment Application (STD 678).

You may apply by mail or in person to:

Department of State Hospitals – Sacramento
Attn: Selection Services Unit MS-14
1215 O Street
Sacramento, CA 95814

If you need assistance or have any questions regarding the online examination process, please contact:

Department of State Hospitals - Selection Services Unit
Monday through Friday, 8am to 5pm (excluding State Holidays)
(916) 651-8832