51.—(1) Not later than 30 days after the award of a contract or conclusion of a framework agreement, a contracting authority must send for publication in accordance with regulation 52 (form and manner of sending notices for publication at EU level) a contract award notice on the results of the procurement procedure.
(2) A contract award notice must contain the information set out in Part D of Annex V to the Directive.
(3) Where the call for competition for the contract concerned has been made in the form of a prior information notice and the contracting authority has decided that it will not award further contracts during the period covered by the prior information notice, the contract award notice must contain a specific indication to that effect.
(4) Paragraph (1) does not apply where the contract awarded is a contract based on a framework agreement.
(5) In the case of the award of a contract based upon a dynamic purchasing system, a contracting authority must either—
(a)send for publication in accordance with regulation 52 (form and manner of sending notices for publication at EU level) a contract award notice within 30 days after the award of each such contract; or
(b)group notices referred to in sub-paragraph (a) on a quarterly basis, in which case the authority must send for publication the grouped notices within 30 days of the end of each quarter.
(6) A contracting authority may withhold from publication information on the contract award or the conclusion of the framework agreement where the release of the information—
(a)would impede law enforcement or otherwise be contrary to the public interest;
(b)would prejudice the commercial interests of any person; or
(c)might prejudice fair competition between economic operators.