92 Ill. Adm. Code 554.507
Overlength
Section 554
Section 554.507 Overlength
a) Permits are required for empty vehicles that exceed legal
dimensions, for objects that exceed 80 feet long, and for loads on a single
vehicle or on the first vehicle of a combination that protrude 3 feet beyond
the front bumper. Protruding sections of a single vehicle (such as the boom of
a mobile crane) may extend more than 3 feet beyond the front bumper.
b) The practical maximum length for permit movements is 145
feet. Permits may be issued for greater lengths on the basis of an individual
movement analysis.