The North American Industry Classification System or NAICS is used by business and government to classify and measure economic activity in Canada, Mexico and the United States. It has largely replaced the older Standard Industrial Classification (SIC) system; however, certain government departments and agencies, such as the U.S. Securities and Exchange Commission (SEC), still use the SIC codes.
The NAICS numbering system is a six-digit code. The first five digits are generally (although not always strictly) the same in all three countries. The last digit designates national industries. The first two digits designate the largest business sector, the third digit designates the subsector, the fourth digit designates the industry group, and the fifth digit designates particular industries.
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NAICS 335912 applies to Dry and Wet Primary Battery Manufacturing.
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The Census Bureau assigns a NAICS code to each establishment based on its primary activity
NAICS Code 812220 is for crematories
NAICS Code 311422
NAICS Code 812220 is for cemeteries
NAICS Code 812220 is for cemeteries and crematories
NAICS Code 311311 is for sugarcane mills
NAICS Code 311513
NAICS Code 311511
NAICS Code 312120 refers to Breweries
NAICS Code 311821 is for cookie and cracker manufacturing