north american industry classification system naics background for over sixty years the standard industrial sic has served as structure collection aggregation presentation and analysis of us economy an consists a group establishments primarily engaged in producing or handling same product products rendering services definitions used bls programs come from 1987 manual because is by many other federal government statistical it possible users to assemble comprehensive picture was developed 1930 s at time when manufacturing dominated economic scene last 60 there have been numerous revisions reflecting changing composition however despite these received increasing criticism about its ability handle rapid changes recent developments information new forms health care provision expansion high tech are examples that cannot be studied under current introducing cooperation with canada
