Aviation Emissions and Air Quality Handbook  • Section 7: Conducting Dispersion Modeling  – Describes the recommended methods for  conducting atmospheric dispersion modeling for airports and airport-related sources.  • Section 8: Conformity  – Discusses the Conformity regulations of the federal CAA and  how they apply to airport projects and actions.  • Section 9: Coordination Best Practices  – Discusses the objectives, benefits, and methods  of conducting agency coordination in support of aviation- related air quality assessment  processes.  29$_{ }$