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Products. 2023 National Electrical Safety Code (NESC) 2023 NESC Handbook. Learn More Check out the 2017 NESC eLearning CoursesThe 2017 NESC(R) Handbook, Premier Edition, is an essential companion to the Code. This handbook includes text directly from Code which provides users an Focusing on practical application of the 2017 Code, this Handbook delivers a rule-by-rule annotation of the NESC® that clarifies potentially confusing Code text