Md. Code, State Finance and Procurement § 13–201

(a) In this subtitle the following words have the meanings indicated.

(b) “Change order” means a written order that:

(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.

(c) “Contract modification” means a written alteration that:

(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.

(d) “Cost-reimbursement contract” means a procurement contract under which the State reimburses a contractor for fees and other costs that are:

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

(2) within a stated ceiling.