CFR › Title 14 › Part 95Part 95 — IFR AltitudesSubpart A — General§ 95.1— Applicability.§ 95.3— Symbols.Subpart B — Designated Mountainous Areas§ 95.11— General.§ 95.13— Eastern United States Mountainous Area.§ 95.15— Western United States Mountainous Area.§ 95.17— Alaska Mountainous Area.§ 95.19— Hawaii Mountainous Area.§ 95.21— Puerto Rico Mountainous Area.Subpart C — En Route IFR Altitudes Over Particular Routes and Intersections§ 95.31— General.Subpart D — Changeover Points§ 95.8001— General.