Article 9: Rules of Construction and Definitions This article is included in your selections. Sections: 9.1. Purpose and Organization of this Article 9.2. Rules of Construction 9.3. Terms of Measurement 9.4. Use-Related Definitions 9.5. Historic Preservation Definitions 9.6. Exterior Lighting Definitions 9.7. Sign Definitions 9.8. Wireless Communication Facility Definitions 9.9. Other Defined Terms