call for bids(A call for bids, call for tenders, or invitation to tender (ITT) (often called tender for short) is a special procedure for generating competing offers from different bidders looking to obtain an award of business activity in works, supply, or service contracts. They are usually preceded by a pre-qualification questionnaire (PQQ). * Types of calls for bids: Open tenders, open calls for tenders, or advertised tenders are open to all vendors or contractors who can guarantee performance. Restricted tenders, restricted calls for tenders, or invited tenders are only open to selected prequalified vendors or contractors. This may be a two-stage process, the first stage of which produces a short list of suitable vendors. Wiki Alexander Demidov)
