NEC 2026 · Article 110 · Open book
Read the installation.
Find the Code.
Choose an activity. Use the jobsite facts and your NEC to make the call.
Article 110 · 20 jobsite cases
Jobsite Scenario Trainer
Read a short jobsite case and decide whether the stated check passes, needs correction, or needs more information.
Choose the Code reference and next step too. Cases appear in random order without repeating during a cycle. Take the time you need with your NEC; corrections keep the same round running.
No login needed. Progress stays in this browser. A correct check is not approval of an entire installation.