(1) A procuring entity shall ensure that —
(a) the tender box, or other means of receiving the tender, are made available to the tenderer;
(b) the tender is kept confidential, and in the case of a sealed tender, the tenders remain unopened, until the time for opening of the tender; and
(c) the tender is closed at the precise date and time of the tendering deadline, and no late tender is accepted.
(2) Where online submission of a tender is allowed, a tender must be received into an electronic tender box and maintained to high standards of security for long term record-keeping and audit.