Award
Award criteria are used to determine which bidder is best placed to deliver a contract. You can decide what award criteria to use but questions you ask at this stage cannot repeat questions you asked at the selection stage. This is because at this stage, suppliers are being assessed on the merits of their tenders rather than their suitability to tender.
The award criteria should allow you to compare tenders fairly. They should be published in advance (in the procurement documents) and not discriminate against or favour potential contractors.