This document summarizes guidelines for procurement under IBRD loans and IDA credits. It discusses procurement involving a program of imports, which allows for simplified ICB procedures including reduced advertising timeframes and limiting bidding and payment to one widely used currency. It also discusses procurement of commodities, noting that market prices fluctuate and involve partial quantities from prequalified bidders to ensure supply. Bidding procedures for commodities allow for short bid validities and quoting prices linked to market prices, with bidding and payment in a single currency specified in documents.