All examinations require that you have a working grasp of the National Electrical Code, Washington laws and rules, and a basic level of electrical theory knowledge. All law, rule and code questions are based on the current version of the Revised Code of Washington (RCW) 19.28 and Washington Administrative Code (WAC) 296-46B, and the 2020 National Electrical Code.

It is recommended that you have appropriate classroom education to be successful in passing the exam. On-the-job experience is typically not enough to ensure a passing grade.

You should be familiar with general copyrighted electrical or telecommunication publications, as well as general math and electrical theory computation. All theory questions are general in nature and are based on information from general copyrighted electrical or telecommunication publications. Theory questions may include: general math and electrical theory computation questions.

Carefully check what you are expected to know for your exam. Several specialties are allowed to perform the work of other specialties. The exams will reflect this expectation. In other words, you may be tested on multiple specialties and, if you are not prepared, the questions may be beyond your preparation.