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CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER F—AIR TRAFFIC AND GENERAL OPERATING RULES (parts 91 to 106) > PART 103—ULTRALIGHT VEHICLES > SUBPART B—Operating Rules (§103.9 to §103.23) > 103.21—Visual reference with the surface.
103.21—Visual reference with the surface.
No person may operate an ultralight vehicle except by visual reference with the surface.