Section 842.270 - Contracting Officer's Representatives' role in contract administration(a) A contracting officer may designate a qualified person to be the Contracting Officer's Representative (COR) for the purpose of performing certain technical functions in administering a contract.(b) The COR acts solely as a technical representative of the contracting officer and is not authorized to perform any function that results in a change in the scope, price, terms or conditions of the contract.(c) A COR designation must be made in writing by the contracting officer. The designation shall identify the responsibilities and limitations of the COR. A copy of the designation must be furnished to the contractor and the Administrative Contracting Officer (ACO), if separately assigned. 85 FR 60077 , 10/26/2020; 85 FR 67463 , 10/23/2020