UL certification programs, services and technical information on products regulated by the NEC® help electrical officials and other electrical professionals achieve safe, code compliant installations. These topics are organized by the same chapter structure consistent with those in the NEC.

Electrical Code TopicsWhite Book

Chapter 1: General

Chapter 2: Wiring and protection

Chapter 3: Wiring methods and materials

Chapter 4: Equipment for general use

Chapter 5: Special occupancies

Chapter 6: Special equipment

Chapter 7: Special conditions

Chapter 8: Communications systems

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