Ill. Admin. Code tit. 92 § 1457.910
"Addendum". A supplement to an existing lease.
"Authorized carrier". A person holding a household goods carrier license from the Commission.
"Equipment". A motor vehicle, straight truck or tractor.
"Lease". A written document vesting possession, use, control and responsibility in the lessee during the periods the vehicle is operated by or for the lessee.
"Lessee". In a lease, the party acquiring the use of equipment, with or without driver, from another.
"Lessor". In a lease, the party granting the use of equipment, with or without driver, to another.
"Owner". A person:
to whom title to equipment has been issued; or
who, without title, has the right to exclusive use of equipment for a period longer than 30 days; or
who has lawful possession of equipment, registered and licensed in any state in the name of that person.
"Permanent lease". A lease in which the authorized carrier acquires the use of equipment, with or without driver, from an owner for a period of 30 days or more.
"Shipper". A person who sends or receives property that is transported in intrastate commerce.
"Sublease". A written document in which the lessee grants the use of leased equipment, with or without driver.
"Trip lease". A lease in which the authorized carrier acquires the use of equipment, with or without driver, from an owner for a period of time less than 30 days.
Ill. Admin. Code tit. 92, § 1457.910