Seat belt laws?

Good thread idea; got me wondering if Illnois law states "seat belts" or includes shoulder belts.

[SIZE=+2]The Illinois Safety Belt Law[/SIZE]
Revised July 3, 2003____________________________________________________________


REQUIREMENTS
Each driver and front seat passenger of a motor vehicle operated on a street or highway in this State shall wear a properly adjusted and fastened seat safety belt; except that, a child less than 16 years of age shall be protected as required pursuant to the Child Passenger Protection Act.
Each driver under the age of 18 years and each of the driver’s passengers under the age of 18 years of a motor vehicle operated on a street or highway in this State shall wear a properly adjusted and fastened seat safety belt.
Each driver of a motor vehicle transporting a child 6 years of age or more, but less than 16 years of age, in the front seat of the motor vehicle shall secure the child in a properly adjusted and fastened seat safety belt.
EXEMPTIONS

Violations
Failure to wear a seat safety belt in violation of this Section shall not be considered evidence of negligence, shall not limit the liability of an insurer, and shall not diminish any recovery for damages arising out of the ownership, maintenance, or operation of motor vehicle.
A violation of this Section shall be a petty offense and subject to a fine not to exceed $25.
A law enforcement officer may not search or inspect a motor vehicle, its contents, the driver, or a passenger solely because of a violation of Section 12-603.1 of the Illinois Vehicle Code.
SOURCE:
Illinois Compiled Statutes, Chapter 625, Act 5, Section 12-603.1