IFH · Chapter 1
IFH 1-8
Page 1-8
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
Figure 8-4b. Legend from en route low altitude chart. Figure 1-4. Legend from en route low attitude chart, air traffic services and airspace information section.
Retrieved from ecfr.gov on July 18, 2026.