30 ILCS 740/4-1.11

"Operating revenues" means income from nonreimbursable fares, rental of properties, advertising, local and state funds contributed to meet eligible operating expenses, and any other amounts collected or received in the process of providing public transportation under this Article, and any revenue which is an operating revenue according to standard accounting practices for the providing of public transportation and which the Secretary may determine, consistent with the federal Department of Transportation regulations and requirements.