## a. 2 − 3 − 15. Security Identifications Display Area (Airport Ramp Area) 

This change clarifies the Security Identifications Display Area (SIDA), other types of security related areas on an airport, and the requirements of security identification. 

## b. 4 − 1 − 21. Airport Reservation Operations and Special Traffic Management Programs 

This change removes the telephone user information from the AIM due to the phone − based CVRS system not being serviceable. 

## c. 4 − 3 − 18. Taxiing 

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 

This change updates and adds clarity regarding wake turbulence information. 

## Aeronautical Information Manual Explanation of Changes 

Effective: August 15, 2019 

## d. 5 − 2 − 3. IFR Clearances Off Uncontrolled Airports 

This change addresses the removal of the dedicated hotline and the phone number MEDEVAC pilots may contact for their clearances. 

## e. 7 − 1 − 20. Pilot Weather Reports (PIREPs) 

This change directs users to the current version of Advisory Circular 00 − 45H for additional detailed information on PIREPs. 

## f. Editorial Changes 

Editorial changes include a universal AWSS change, NTAP references in 5 − 1 − 11, *RP terminology in 4 − 3 − 3, and references to MEDEVAC. 

## g. Entire publication. 

Editorial/format changes were made where neces- sary. Revision bars were not used when changes are insignificant in nature. 

