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Section 90.5 also addresses explanatory material and informative annexes.Explanatory material is provided in the form of Informational Notes. Informational notes typically provide references to other code rules or to other standards or information about a specific code rule. They are useful to interpretation but are not enforceable requirements.
Informational Notes were formerly called Fine Print Notes or FPNs.Informative Annexes are also nonmandatory and unenforceable. But they provide useful information about the use of the NEC, including examples.
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