51.—(1) This regulation applies to the obligation on a contracting authority to comply with—
(a)the provisions of these Regulations, other than regulations 16(2), 31(9), 33(12), 46 and 47(1) and (2); and
(b)any enforceable EU obligation in respect of a contract (other than one excluded from the application of these Regulations by regulation 7 or 9).
(2) That obligation is a duty owed to an economic operator.