Vendor shall provide an annual Environmental EPA report for each coal-fired plant located at Logan Correctional Center and Vienna Correctional Center, and each gas-fired plant at Menard Correctional Center, Stateville Correctional Center, and Pontiac Correctional Center. The report must comply with the standards established by Environmental Protection Agency for Annual Emissions Reporting. The Vendor shall provide compliance certificates for Logan and Vienna Correctional Centers. Services may be added or removed due to operational needs at any time during the contract term. Any changes in service to the contract shall be done by a contract amendment to the BidBuy Purchase Order. For procurements conducted in BidBuy, the State may include in this contract the BidBuy Purchase Order as it contains the agreed Supplies and/or Services.