In EC&M Code Conversations highlights, Ellen Parson, editor-in-chief of EC&M, is highlighting some of the most popular Code content from the magazine and website, but this time brought to you in audio-only form, in case you missed it. In this episode, we’re featuring "Understanding General Requirements of the NEC, Part 4" by Mark Lamendola. Mark dives into Sec. 110.3, which examination and identification, installation and use, and listing.