The seasonal adjustment procedure is designed to reflect seasonal patterns at the most detailed commodity levels. The Census Bureau is seasonally adjusting the merchandise trade data at the most detailed end-use level possible. These detailed data are then summed to the 1-digit level for release with the monthly merchandise trade totals. The adjustment is made at that end-use commodity level for which significant stable seasonality is identified. The use of the end-use commodity classification system for seasonal adjustment ensures methodological consistency with the quarterly adjusted balance of trade data published by the Bureau of Economic Analysis (BEA) and reflects the BEA coding descriptions which combine data into broad categories based upon principal uses of the commodities.