Synopsis As Introduced Amends the Public Utilities Act. Requires a public utility seeking to classify information as proprietary or confidential to (i) identify to the Illinois Commerce Commission each and every piece of information it seeks to classify in that manner and (ii) justify the withholding of that information from public inspection. Provides that the existence of competition for a particular service is not alone sufficient justification for withholding information from public inspection. Provides that certain information is not confidential or proprietary. Effective immediately.