National Electrical Code


Since 1897 the National Electrical Code (NEC) has been the standard for ensuring that electrical systems are installed safely. Mike Holt’s career has been dedicated to teaching others the Code; dispelling myths, clarifying confusing topics, and challenging electrical professionals everywhere to become life-long students of the Code. Read the history here.

His products, classes and website have helped tens of thousands of electrical professionals learn how to apply the Code in the classroom, in the exam room and out in the field. Mike knows how important it is to find the Code information that you need. This page brings together in one place the resources to help make it easier for you.

To see Mike Holt's Rating of the Electrical industry report Click here.

NEC Adoption List by State

Click on the map, or use the drop-down box to view details of NEC Adoption by State.

  • 2023 NEC
  • 2020 NEC
  • 2017 NEC
  • 2014 NEC
  • 2008 NEC
  • Local Adoption

To see a complete list click here.