For Iowa exam prep
Treat 2023 NEC as the primary study basis unless the official Iowa testing basis changes. Build speed and familiarity on the code cycle you are actually expected to use.
This section helps separate Iowa exam study from newer code-cycle awareness. Keep Iowa journeyman prep centered on the exam basis you are actually being tested on. Use this page to compare and stay ahead, not to blur the exam target.
Treat 2023 NEC as the primary study basis unless the official Iowa testing basis changes. Build speed and familiarity on the code cycle you are actually expected to use.
Use 2026 NEC comparison mode to understand newer organization, revisions, and practical changes without letting that distract from core exam preparation.
Comparison study is useful when you want to understand what may be changing in the trade, in code discussions, or in future local adoption cycles.
Expect structural updates and reorganization to improve navigation, but verify exact article numbering from official NFPA sources.
Increased focus on disconnecting means, GFCI/AFCI expansion, and EV-related safety requirements.
More coverage of EV systems, energy storage, and interconnected power systems.
Iowa exams are still based on 2023 NEC. Use 2026 only for awareness—not primary study.
Primary study mode for Iowa journeyman exam preparation on this site.
Secondary compare mode for forward-looking study, code evolution, and broader awareness.
Use Study AI and Practice mode to lock in the article structure, lookup habits, and question patterns that matter for the exam.
Once your base is stable, use comparison mode to note what changed and where new code-cycle differences might matter.
Do not mix newer-code assumptions into Iowa exam answers unless the official testing basis has changed.