We strive to provide as much as we can to the industry at no charge, and the items listed on these pages are included for your use, and to be shared with others. We don’t endorse, warrant, or take responsibility for other products or services listed on these pages. Please work safely, and adopt all safety and applicable federal, state, and local laws and regulations. Mike Holt Enterprises disclaims liability either directly or indirectly on injuries, property damages, or other damages that are the result of readers using the material on these pages.
When you’re ready to take an electrical exam, or need continuing education, think of Mike Holt Enterprises. Click here to see our full range of training products.
Ask technical questions, search industry topics
Code Tip Daily
Review and train with the daily Code Rule
Wiring charts, calculations, and more
Electrical industry job listings
Industry articles and links — grouped by category
Mike Holt Publications
Industry Manuals and Booklets
Latest news, alerts, exclusive offers
Quizzes & Exams
Practice with quizzes & simulated exams
Electrical Professional Resources by category
Library of Mike’s video clips