1. 1FAA Order JO 7110.65V, April 2014, Air Traffic Control.
2. Progress on an ICAO Wake Turbulence Re-Categorization Effort
3. 3FAA Order JO 7110.659B, February 2015, Wake Turbulence Recategorization.
4. 5FAA Notice JO 7110.525, April 2010, Appendix A, Aircraft Information Fixed-Wing Aircraft.