The World Bank utilises its own Standard Bidding Documents for Works (SBDW), which have been prepared for use in the procurement of admeasurements (unit price or rate) types of works contracts through international competitive bidding. The World Bank, on projects worldwide, developed the procedures and practices set forth in the SBDW through broad international experience. They are mandatory for use in works contracts financed in whole or in part by the World Bank which are estimated to cost more that US$10 million, unless the Bank agrees to the use of other Bank Standard Bidding Documents on a case-by-case basis.