Pre-qualification describes the evaluation of potential bidders, before tenders are invited, against a list of criteria to ensure that only bidders which meet defined standards are eligible to bid, which can reduce the cycle time of the procurement process. Competitive tendering is predicated on the evaluation of offers on an ‘apples with apples’ basis, to ensure that bidders are of equal capability, or meet minimum professional and financial accreditation. In addition, the maintenance of standing lists of approved bidders can ensure that fair and open competition is demonstrated, and that bids can be evaluated on a broadly ‘like-for-like’ basis. See also Competition.