(a) Each person operating an ultralight vehicle shall maintain vigilance so as to see and avoid aircraft and shall yield the right-of-way to all aircraft.
(b) No person may operate an ultralight vehicle in a manner that creates a collision hazard with respect to any aircraft.
(c) Powered ultralights shall yield the right-of-way to unpowered ultralights.
source: Docket No. 21631, 47 FR 38776, Sept. 2, 1982, unless otherwise noted.
cite as: 14 CFR 103.13