This section identifies those other areas of NFPA 70 that are not a part of Chapters 5, 6, and 7 that amend or supplement the requirements found in Article 210.  

Keep in mind that 90.3 provides information as to the layout of the Code stating that Chapters 1, 2, 3, and 4 apply generally. It also states that Chapters 5, 6, and 7 may supplement or modify the requirements in Chapters 1 through 7.  The debate by some in the industry is whether the requirements found in Chapters 1 through 4 can supplement or modify the requirements found in Chapters 1 through 4.  Some argue that 90.3 does not permit this while others argue that 90.3 does not prohibit it.  

---

NFPA 70-2023 Changes

The fixed electric space heating reference of section 424.3 was corrected to correctly point to 424.4. Minor grammatical changes were made.