The Oregon licensing division does not publish a list of subjects covered in the exam like many other states. The button below will open a basic exam content study guide we have created to help you navigate the many references listed in the allowed books:
Authorized to install, maintain, and repair low-voltage communication and signaling systems covered by the Oregon Electrical Specialty Code (OESC), including data, telecommunications, and similar limited energy circuits.
Performs work in compliance with the NEC, Oregon amendments, and applicable laws and rules, and typically works under the supervision required by regulation. Work is limited to communication and signal systems within the Class B limited energy classification.
This license does not permit work on fire alarm systems or standard power wiring, including services, feeders, or branch circuits outside the defined limited energy scope.
About reference(s) 8 above. These two books have the same function but there are differences; Reference 8a is more instructional, includes practice questions, explainations and limited calculation help, better for learning the code. Reference 8b has more dense/comprehensive indexing and focuses on multiple paths to the same topic, has minimal explanations, better for speed during exams and finding obscure or oddly-worded questions. We advise buying one or the other based on your needs and the info provided here.
NOTICE: OAR 918 references the National Electrical Safety Code (NESC). You do not need to study this code because it only applies to utility work.
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