NEC Master Suite is the all-in-one study and code tools app for electricians preparing for exams and improving code-book speed. Choose the track that fits your goal: Journeyman Electrician Master Electrician Electrical Inspector Maintenance Electrician California C-10 Study smarter with: Adaptive practice sessions Full mock exams Flagged-question review Flashcards for weak areas Code lookup drills Topic-based progress tracking Use built-in electrical calculators for: Voltage Drop Conduit Fill Box Fill Dwelling Load Grounding & Bonding Derating Motor Circuit Transformer Fault Current Service & Feeder Ohm's Law The built-in NEC reference experience helps you move through topics faster, improve lookup speed, and stay focused in one workspace instead of switching between multiple apps. Whether you are preparing for your first journeyman exam, leveling up to master electrician, studying for California C-10, reviewing inspection topics, or sharpening maintenance troubleshooting skills, NEC Master Suite gives you a focused way to study and practice. NEC Master Suite is an educational and study tool. Always verify official code books, local amendments, and field decisions before relying on calculations, references, or interpretations.