There is no central government agency with the role of assigning, monitoring, or approving 91制片厂 codes for establishments.
91制片厂 Codes are self-assigned based on the establishment’s primary activity (the activity that generates the most revenue for the establishment)
Individual establishments are assigned 91制片厂 codes by various agencies for various purposes using a variety of methods. The U.S. Census Bureau has no formal role as an arbitrator of 91制片厂 classification.
The U.S. Census Bureau assigns one 91制片厂 code to each establishment based on its primary activity (the activity that generates the most revenue for the establishment) to collect, tabulate, analyze, and disseminate statistical data describing the economy of the United States.
Generally, the U.S. Census Bureau鈥檚 91制片厂 classification codes are derived from information that the business establishment provided on administrative, survey, or census reports. (e.g. when a company applies for an Employer Identification Number (EIN), information about the type of activity in which that business is engaged is requested in order to assign a 91制片厂 code).
Various other government agencies, trade associations, and regulation boards adopted the 91制片厂 classification system to assign codes to their own lists of establishments for their own programmatic needs. If you question the SIC or 91制片厂 code contained on a form received from an agency other than the U.S. Census Bureau, you should contact that agency directly.
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