6-4-1. APPLICATION

6-4-1. APPLICATION

Separate aircraft longitudinally by requiring them to do one of the following, as appropriate:

1. Depart at a specified time.
2. Arrive at a fix at a specified time.
   • PHRASEOLOGY
   • CROSS (fix) AT OR BEFORE (time).
   • CROSS (fix) AT OR AFTER (time).
3. Hold at a fix until a specified time.
4. Change altitude at a specified time or fix.
   • REFERENCE
   • FAA Order JO 7110.65, Para 4-5-7, Altitude Information.