Chapter 8 is subject to the requirements of Chapters 1 through 7 only when referenced in _________.

The correct answer emphasizes that Chapter 8 is specifically subject to the requirements of Chapters 1 through 7 only when it is referenced in Article 90. Article 90 serves as a foundational guide within many coding systems, establishing the general rules and scope for the document. When Article 90 mentions the applicability of earlier chapters, it clarifies the conditions under which the provisions of Chapters 1 through 7 must be considered applicable to Chapter 8.

Interestingly, the other chapters mentioned do not have the same authoritative role as Article 90. Chapter 9 may deal with further details, but it doesn't set the initial scope. Chapter 1 provides general provisions but is not the specific section that links back to the foundational requirements. Similarly, Chapter 8 itself doesn't provide a reference point; it is more about the subject matter it covers. Therefore, Article 90 acts as a gateway for identifying when earlier chapters apply to the stipulations found in Chapter 8, making it the correct reference point for this context.