(35 ILCS 505/1.28)
"Semitrailer" means every vehicle without motive power, other
than a pole trailer, designed for carrying persons or property and for being
drawn by a motor vehicle and so constructed that some part of its weight and
that of its load rests upon or is carried by another vehicle.
(Source: P.A. 92-30, eff. 7-1-01.)