Sec. 103.17 - Operations in certain airspace.
No person may operate an ultralight vehicle within Class A, Class B,
Class C, or Class D airspace or within the lateral boundaries of the
surface area of Class E airspace designated for an airport unless that
person has prior authorization from the ATC facility having jurisdiction
over that airspace.
[Amdt. 103-17, 56 FR 65662, Dec. 17, 1991]