Maryland Code, State Finance and Procurement § 13-201

(1) is signed by the procurement officer; and

(2) directs the contractor to make changes that the procurement contract authorizes the procurement officer to order without the consent of the contractor.

(1) affects specifications, delivery point, date of delivery, period of performance, price, quantity, or other provisions of a procurement contract; and

(2) is accomplished by mutual action of the parties to the procurement contract.

(1) recognized as allowable and allocable under the regulations of the Board on price and cost principles; and

(2) within a stated ceiling.