In November 1998, Denver voters passed referendum 4A which was in favor of the construction of a new football stadium to replace the existing Mile High Stadium. The referendum was included on the ballots of six Colorado counties that comprise the Denver Metropolitan area. The referendum called for the extension of a tenth of a percent sales tax on transactions within the Metro area to go towards the cost of issuing a $224.9 million bond. This tax was originally established in 1990 when the Colorado Rockies sought public financing for Coors Field. Financing and construction for the stadium was monitored by the Metropolitan Football Stadium District (MFSD). The MFSD is a subdivision of the State of Colorado that, “was created for the purpose of planning, acquiring land and constructing a professional football stadium” The MFSD is also responsible for implementing the MFSD tax. The extension of the original stadium tax came into effect on January 1, 2001.