The data published with NAICS code 336399 include the following SIC industries:
3519 Internal combustion engines, n.e.c. (pt)
3714 Motor vehicle parts and accessories (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 336399 do not include establishments primarily engaged in the manufacture of luggage and utility racks or trailer hitches. The NAICS definitions will be fully implemented with the 2002 Economic Census.
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