The Commuter Savings Program (CSP) is intended to serve as a qualified transportation fringe program under section 132(f) of the Internal Revenue Code ( 26 USC 132(f) ) and is to be interpreted in a manner consistent with the requirements of this Section. The purpose of CSP is to enable participants the opportunity to pay qualified transportation expenses with pre-tax payroll deducted contributions, limited to expenses not claimed on federal tax forms.
Ill. Admin. Code tit. 80, § 2190.10