AIM Text
A pilot departing VFR, either intending to or needing to obtain an IFR clearance en route, must be aware of the position of the aircraft and the relative terrain/obstructions. When accepting a clearance below the MEA/MIA/MVA/OROCA, pilots are responsible for their own terrain/obstruction clearance until reaching the MEA/MIA/MVA/OROCA. If pilots are unable to maintain terrain/obstruction clearance, the controller should be advised and pilots should state their intentions.
Source: FAA Aeronautical Information Manual · current edition · paragraph 4-4-9.
The short answer
This AIM section is FAA advisory guidance for pilots departing VFR who intend to or must pick up an IFR clearance en route. It stresses that when accepting a clearance below the MEA, MIA, MVA, or OROCA, pilots stay responsible for their own terrain and obstruction clearance until reaching those altitudes. It supports IFR operations under 14 CFR Part 91.
Research Notes
Common Questions
Who is responsible for terrain clearance below the MEA on a VFR-to-IFR pickup?
How much clearance does an OROCA provide?
The AIM notes OROCA is a published altitude giving 1,000 feet of terrain and obstruction clearance in the US, and 2,000 feet in designated mountainous areas. It is intended for situational awareness, flight planning, and in-flight contingency use.
Does an OROCA guarantee NAVAID, radar, or communications coverage?
No. The AIM states OROCA altitudes are not assessed for NAVAID signal coverage, air traffic control surveillance, or communications coverage. They are published only for general situational awareness, flight planning, and contingency use.