D.C. Mun. Regs. tit. 8-B, § 3513
3513.1 If a purchase order that has been accepted in writing by the contractor is to be terminated, the contracting officer shall process the termination action in accordance with the termination provisions of chapter 37 of the D. C. Procurement Regulations.
3513.2 If a purchase order that has not been accepted in writing by the contractor is to be canceled, the contracting officer shall notify the contractor in writing that the purchase order has been canceled, request the contractor's written acceptance of the cancellation, and proceed in accordance with the provisions of §§3513.3 and 3513.4.
3513.3 If the contractor accepts the cancellation and does not claim that costs were incurred as a result of beginning performance under the purchase order, no further action shall be required and the purchase order shall be considered canceled.
3513.4 If the contractor does not accept the cancellation or claims that costs were incurred as a result of beginning performance under the purchase order, the contracting officer shall treat the action as a termination in accordance with the provisions of chapter 37 of the D. C. Procurement Regulations.
SOURCE: Final Rulemaking published at 39 DCR 2566 (April 10, 1992).