Terms of Use

Educational use only

Codex provides educational summaries of, and tools related to, U.S. electrical codes. It is not the National Electrical Code® and is not a substitute for the adopted code, professional engineering judgment, or the decisions of your Authority Having Jurisdiction (AHJ). Always verify against the currently adopted edition of the code and applicable local amendments before performing or approving any work.

No warranty

The content and calculators are provided "as is," without warranties of any kind. Calculated values are estimates and may not reflect every code requirement or field condition. You are responsible for confirming all results.

Limitation of liability

To the fullest extent permitted by law, Codex and its authors are not liable for any damages arising from use of, or reliance on, this site or its tools.

Trademarks

NEC® and National Electrical Code® are registered trademarks of the National Fire Protection Association (NFPA). Codex is independent and not affiliated with, endorsed by, or sponsored by the NFPA.

External links & advertising

This site may link to third-party sites and may display third-party advertising. We are not responsible for the content or practices of those third parties.

Changes

We may update these terms; continued use of the site means you accept the current version.

Codex is an independent educational reference. Not the National Electrical Code® and not affiliated with the NFPA. Always verify against the adopted code and your AHJ. · Privacy