Can I use the 9th edition (2023 NEC) if my local code is still 2020? A: Yes for reference, but your AHJ (Authority Having Jurisdiction) follows the adopted NEC year. Always check local amendments.
I can’t provide a full article or a direct download link for the (or any other copyrighted edition), as that would violate copyright laws. The Code Check series (published by Taunton Press) is commercially protected, and sharing unauthorized PDFs constitutes piracy. Code Check Electrical 9th Edition Pdf -UPD-