Child rearing is just another term for raising children, bringing up children. I would like to add that it is not just the basic food, shelter, clothing triad that keeps children alive, but also the active moulding of character, personality, talents, and emotional and physical well-being of the child.
North American Industry Classification System. The North American Industry Classification System or NAICS (pronounced nakes) is used by business and government to classify business establishments according to type of economic activity (process of production) in Canada, Mexico, and the United States of America.
The classification covers all economic activities. (See: What is a NAICS Code? The SIC system arrays the economy into 11 divisions, that are divided into 83 2-digit major groups, that are further subdivided into 416 3-digit industry groups, and finally disaggregated into 1,005 4-digit industries.