Match the NEC edition first
Confirm whether your exam uses the 2020, 2023, or 2026 NEC before buying supporting books. Indexes and handbooks should match the edition you study from whenever possible.
Electrical Apprentice Pro
Electrical references for study, testing, and the field.
These are practical electrical references for code navigation, study, testing, and field use. TRADECAIRN Electrical Apprentice Pro supports these titles where permitted by the learner’s exam profile.
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Supported references
Choose the reference your exam allows.
Electrical Apprentice Pro supports NEC 2020, 2023, and 2026 profiles. The books below are reference options in the exam-profile setup; inclusion here does not mean every exam permits every title.
Choosing electrical references
Start with the Code. Add navigation help only when it fits your exam.
The National Electrical Code is the primary technical reference for the exam profiles supported by Electrical Apprentice Pro. Supplemental books can make navigation faster or provide additional explanations, but they do not replace the adopted Code edition or your testing provider’s rules.
Know what each book does
The NEC contains the governing code language. Index books help you locate topics. The Handbook adds explanatory material. Compact field references collect commonly used formulas and tables.
Verify what you can bring
An excellent study reference is not automatically an allowed exam reference. Check the official permitted-material list for your jurisdiction or testing provider before test day.
NFPA 70National Electrical CodeNEC
NFPANEC HandbookIllustrated reference
FERMFast Finder IndexCode navigation
Navigation aid
Ferm’s Fast Finder Index
A quick-reference index for locating NEC topics faster. Match the index edition to the NEC edition you are using and verify that your exam permits it.
Find on Amazon Paid link · Choose the edition that matches your NEC.TOM HENRYKey Word IndexCode navigation
Navigation aid
Tom Henry’s Key Word Index
A keyword-based NEC navigation reference included as an optional exam-profile resource in Electrical Apprentice Pro.
Find on Amazon Paid link · Confirm edition and exam eligibility before purchase.UGLY’SElectrical ReferencesField reference
Field & study reference
Ugly’s Electrical References
A compact electrical reference used by many electricians for formulas, tables, and field information. Some exams allow it and others do not.
Find on Amazon Paid link · Verify your exam’s permitted-reference list.Free study guideHow to Study the NEC for an Electrical Exam
Read the NEC study guide
Learn a repeatable approach to Code navigation, calculations, reference selection, timed practice, and reviewing missed questions.
Before you buy
Exam rules differ by jurisdiction and testing provider. Verify the required NEC edition, whether the exam is open book, and which supplemental references are allowed. TRADECAIRN does not guarantee that a listed reference is permitted on your specific exam.