Chapter 20. Temporary Flight Restrictions (TFRs)Section 1. General Information20-1-1. PURPOSE20-1-2. AUTHORITY20-1-3. REASONS FOR ISSUING A TFR20-1-4. TYPES OF TFRs20-1-5. TFR NOTAM CONTENT20-1-6. TFR INFORMATION20-1-7. TFRs OUTSIDE OF THE UNITED STATES AND ITS TERRITORIES20-1-8. TFR QUESTIONSSection 2. Temporary Flight Restrictions for Unmanned Aircraft (49 U.S.C. Section 44812)20-2-1. PURPOSE20-2-2. TFR CRITERIA20-2-3. REQUESTING AUTHORITIES/ELIGIBLE ENTITIES20-2-4. ISSUING TFRs20-2-5. DEGREE OF RESTRICTIONSSection 3. Temporary Flight Restrictions in the Vicinity of Disaster/Hazard Areas (14 CFR Section 91.137)20-3-1. PURPOSE20-3-2. TFR CRITERIA20-3-3. REQUESTING AUTHORITIES20-3-4. ISSUING TFRs20-3-5. DEGREE OF RESTRICTIONS20-3-6. RESPONSIBILITIES20-3-7. REVISIONS AND CANCELLATIONSSection 4. Temporary Flight Restrictions in National Disaster Areas in the State of Hawaii (Section 91.138)20-4-1. PURPOSE20-4-2. REQUESTING AUTHORITIES20-4-3. DEGREE OF RESTRICTIONS20-4-4. DURATION OF RESTRICTIONS20-4-5. ISSUING TFRsSection 5. Emergency Air Traffic Rules (14 CFR Section 91.139)20-5-1. PURPOSE20-5-2. REQUESTING AUTHORITIES20-5-3. ISSUING TFRs20-5-4. DEGREE OF RESTRICTIONSSection 6. Flight Restrictions in the Proximity of the Presidential and Other Parties (14 CFR Section 91.141)20-6-1. PURPOSE20-6-2. REQUESTING AUTHORITIES20-6-3. ISSUING TFRs20-6-4. DEGREE OF RESTRICTIONS20-6-5. PROCEDURESSection 7. Flight Limitation in the Proximity of Space Flight Operations (14 CFR Section 91.143)20-7-1. PURPOSE20-7-2. ISSUING AUTHORITIES20-7-3. DEGREE OF RESTRICTIONS20-7-4. AIRPORTS WITHIN AIRCRAFT HAZARD AREAS AND TRANSITIONAL HAZARD AREASSection 8. Management of Aircraft Operations in the Vicinity of Aerial Demonstrations and Major Sporting Events (14 CFR Section 91.145)20-8-1. PURPOSE20-8-2. DEGREE OF RESTRICTIONS20-8-3. REQUESTING AUTHORITIES20-8-4. AERIAL DEMONSTRATION/AIRSHOW TFRs20-8-5. TFR REQUESTS FOR MAJOR SPORTING EVENTS20-8-6. TFR REVISIONS AND CANCELLATIONS