The metalcasting industry is segmented into Standard Industrial Classifications (SICs) based on the type of metal cast. In 1997, the Office of Management and Budget (OMB) reclassified all U.S. industries under a new code - the North American Industry Classification System, or NAICS [OMB 1997]. These new classifications will be used in the next Census of Manufactures conducted by the Department of Commerce, as well as by other Federal agencies that collect data from industry. However, industry data are currently only available according to SIC codes.