NEC Mastery

Developed with insights from licensed electricians and instructors nationwide, NEC Mastery combines 8,000+ exam-style questions with detailed explanations, 20 professional NEC calculators, and a Quick Reference featuring 13 categories and 100+ offline items (formulas, ampacity, wire properties, conduit fill, and more). The toolkit supports a wide range of certifications and is updated for the 2023 NEC Code and 2024 changes.

Extras include offline access, dark mode, adjustable text size, iCloud sync across devices, PDF export, and a smart, randomized mock-test engine with instant explanations. Users can tailor syllabi down to individual NEC articles and study topics, making NEC Mastery a comprehensive prep solution for Journeyman, Master Electrician, Electrical Contractor, and related exams.