Chapter 32. Environmental MattersSection 1. General Information32-1-1. PURPOSE32-1-2. POLICY32-1-3. BACKGROUND32-1-4. DELEGATION OF AUTHORITY32-1-5. RESPONSIBILITIESSection 2. Environmental Processing32-2-1. THE PROCESS32-2-2. ENVIRONMENTAL REVIEW OF FLIGHT PROCEDURES AND OTHER AIR TRAFFIC ACTIONS32-2-3. ENVIRONMENTAL REVIEW OF SPECIAL USE AIRSPACE (SUA) ACTIONS32-2-4. CFR PART 150 STUDIES32-2-5. ENVIRONMENTAL REVIEW OF LETTERS OF AGREEMENT AND OTHER AIRSPACE AND AERONAUTICAL DOCUMENTSSection 3. Environmental Impact Categories and Other Topics32-3-1. ENVIRONMENTAL IMPACT CATEGORIES TO BE INCLUDED IN ANALYSIS32-3-2. ENVIRONMENTAL IMPACT CATEGORIES EXCLUDED FROM ANALYSIS32-3-3. ENVIRONMENTAL SCREENING AND MODELING TOOLS32-3-4. RECORDS RETENTIONSection 4. Air Traffic‐Specific Environmental Guidance and Requirements32-4-1. DEPARTMENT OF TRANSPORTATION (DOT) ACT SECTION 4(f) (RECODIFIED AS 49 USC SECTION 303(c))32-4-2. NATIONAL HISTORIC PRESERVATION ACT (NHPA) § 106: ACTIONS NOT REQUIRING CONSULTATION32-4-3. COMMUNITY INVOLVEMENT32-4-4. SEGMENTATION, INDEPENDENT UTILITY, AND CUMULATIVE IMPACTS32-4-5. DIVERSE VECTOR AREAS (DVA)32-4-6. NATIONAL SECURITY AREAS (NSAs)32-4-7. PROHIBITED AREA AND ALERT AREA DESIGNATIONS32-4-8. RECORDS RETENTION32-4-9. APPENDICES32-4-10. MEMORANDUMS AND EMAILS SUPERSEDED BY THIS ORDER