Common question · October 28, 2026
Yes. TDLR's exam page says the exam is open book and you may use the National Electrical Code (the page names the 2026 edition). The exam is given by PSI, TDLR's testing company, in two parts: knowledge and calculations. Being open book doesn't make it easy: practice finding things in the code quickly, and practice the calculations. Our free practice questions cover Texas rules, safety and electrical theory.
Answered by SkillsTradeJobs team · October 28, 2026
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