The data published with NAICS code 311119 include the following SIC industry:
2048 Prepared feeds and feed ingredients for animals and fowls, except dogs and cats (pt)
This definition comes from the 1997 NAICS manual. However, for this industry, the 1997 Economic Census Manufacturing did not fully implement the conversion to NAICS. Data for NAICS industry 311119 do not include establishments primarily engaged in the custom grinding of grain. The NAICS definitions will be fully implemented with the 2002 Economic Census.