On January 31, 2005, Statistics Canada announced that November 2004 imports were understated in its January 12, 2005 release. The U.S. Census Bureau and Statistics Canada cooperate in a data exchange program where Canadian import transactions, collected by the Canadian Customs organization are provided, through Statistics Canada, to the Census Bureau to derive U.S. exports to Canada. Statistics Canada recently notified the Census Bureau that Canadian import transactions for November 2004 were omitted in the data exchange resulting in an understatement of U.S. exports to Canada of approximately $1.4 billion, according to the calculations of Statistics Canada. The November 2004 export statistics will be revised to include the omitted transactions and will be made available with the release of December 2004 statistics on February 10, 2005.