What is an industry code?
It is a numeric method of classifying/identifying companies by their main line of business for the purpose of monitoring industry performance. Standard Industrial Classification (SIC) is a 4-digit code in use until the signing of the NAFTA treaty. In 1997 a 6-digit system known as the North American Industrial Classication System (NAICS) replaced the SIC code. Canada and Mexico are included in NAICS system.
Why is this important?
There are a variety of resources to use to locate an industry code for a specific industry. Tthe resources are listed below are good starting places.