Reverse Auction is held in the following way: bidders submit their technical and financial documentations (prices) when a tender has status “submission of proposals commenced”. As soon as the period for submission of proposals ends (the deadline is set by a procuring entity) Reverse Auction will begin and bidders will have 15 minutes to lower their initial bids (number of bids is not restricted). In order to avoid last minute bids, when less than 2 minutes are left till the end of an auction, the auction timer returns back to 2 minutes if a bidder places its bid which is lower than a bid submitted by another bidder.