We have limited this answer to cover public procurement procedures under the Public Contracts Regulations 2015 (PCR 2015), SI 2015/102 involving a separate selection stage. PCR 2015, SI 2015/102, reg 55(1) provides that contracting authorities shall, as soon as possible, inform each candidate and tenderer of a decision reached concerning the conclusion of a framework agreement, the award of a contract or admittance to a dynamic purchasing system. PCR 2015, SI 2015/102, reg 55(2)(a), goes on to confirm that on request from the candidate or tenderer the contracting authority shall within 15 days of such a request inform them of the reasons for the rejection of its request to participate. Furthermore, a contracting authority also needs to comply with the requirements of PCR 2015, SI 2015/102, reg 86. PCR