92 Ill. Adm. Code 14.940
Liability
Section 14.940 Liability
The pilot-in-command and/or owner of a Special Purpose
Aircraft, operating to or from an uncertificated area shall be responsible for,
and by so operating shall assume, the responsibility for any liability that may
arise out of these operations. This Part shall not be interpreted as, nor does
it give the pilot-in-command of the aircraft the right to trespass upon the
property of another. The foregoing does not relieve a property owner from
liability to invitees for damage arising from defects for which they have
actual or constructive knowledge.