Md. Code Regs. 21.07.03.04
"Delivery shall be made in accordance with the solicitation specifications. The State, in its sole discretion, may extend the time of performance for excusable delays due to unforeseeable causes beyond the Contractor's control. The State unilaterally may order in writing the suspension, delay, or interruption of performance hereunder. The State reserves the right to test any materials, equipment, supplies, or services delivered to determine if the specifications have been met. The materials listed in the bid or proposal shall be delivered FOB the point or points specified prior to or on the date specified in the bid or proposal. Any material that is defective or fails to meet the terms of the solicitation specifications shall be rejected. Rejected materials shall be promptly replaced. The State reserves the right to purchase replacement materials in the open market. Contractors failing to promptly replace materials lawfully rejected shall be liable for any excess price paid for the replacement, plus applicable expenses, if any."
Md. Code Regs. 21.07.03.04