Aeronautical Information Manual Explanation of Changes Effective: August 15, 2019 d. 5 − 2 − 3. IFR Clearances Off Uncontrolled Airports a. 2 − 3 − 15. Security Identifications Display Area (Airport Ramp Area) b. 4 − 1 − 21. Airport Reservation Operations and Special Traffic Management Programs e. 7 − 1 − 20. Pilot Weather Reports (PIREPs) c. 4 − 3 − 18. Taxiing f. Editorial Changes g. Entire publication. This change clarifies the Security Identifications Display Area (SIDA), other types of security related areas on an airport, and the requirements of security identification. This change addresses the removal of the dedicated hotline and the phone number MEDEVAC pilots may contact for their clearances. This change directs users to the current version of Advisory Circular 00 − 45H for additional detailed information on PIREPs. Editorial changes include a universal AWSS change, NTAP references in 5 − 1 − 11, *RP terminology in 4 − 3 − 3, and references to MEDEVAC. Editorial/format changes were made where neces- sary. Revision bars were not used when changes are insignificant in nature. This change updates and adds clarity regarding wake turbulence information. E of Chg − 1 Explanation of Changes This change removes the telephone user information from the AIM due to the phone − based CVRS system not being serviceable. 7 1. General − 3 − 2. Vortex Generation 7 3. Vortex Strength − 3 − 4. Vortex Behavior 7 5. Operations Problem Areas − 3 − 8. Pilot Responsibility 7 9. Air Traffic Wake Turbulence Separa- tions 7 − 3 − 10. Development and New Capabilities AIM 8/15/19