92 Ill. Adm. Code 446.401
General Requirements
Section 446
Section 446.401 General
Requirements
a) Any and all rates or charges made by an operator of an
Official Testing Station for performing a safety test for a school bus shall be
just and reasonable.
b) A rate of charge is "just and reasonable" if it is
the same, or nearly the same, as the prevailing rate of charge for the same or
similar tests made in the community where the official testing station is
located.