The category of business (NAICS code 4551) "Grocery stores" is defined as "primarily engaged in retailing a general line of food products", and the subcategory (NAICS code 455110), "Supermarkets and Other Grocery (except Convenience) Stores" is defined as

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Q1. How do you read "NAICS code 4551"?
Q2. How do you read "NAICS code 455110"?

1. NAICS (pronounce the letters of the alphabet) code four five five one

2. NAICS (pronounce the letters of the alphabet) code four five five one one zero

Q1. To read "NAICS code 4551," you can break it down into its individual components. NAICS stands for the North American Industry Classification System, which is a standardized system used to classify businesses in North America.

The code itself, 4551, is a five-digit numerical identifier. The first two digits, 45, indicate the sector the business belongs to, in this case, the Retail Trade sector. The next two digits, 51, represent the subsector within the Retail Trade sector, which is Grocery Stores.

So, to read "NAICS code 4551," you would say "NAICS code forty-five fifty-one" or simply "NAICS code forty-five-one."

Q2. Similarly, to read "NAICS code 455110," you can follow the same approach. The first four digits, 4551, represent the same sector and subsector as explained above (Retail Trade and Grocery Stores). The final two digits, 10, indicate the industry group within the subsector.

To read "NAICS code 455110," you would say "NAICS code forty-five fifty-five-one-ten" or simply "NAICS code forty-five-one-one-ten."