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![]() Categorical User InformationThis page contains information, documents, and links related to Federal Categorical Regulations. Categorical Regulations, also called Effluent Guidelines, are federal limits and requirements for specific industrial categories that apply nationwide. Industrial Users subject to Categorical Regulations with applicable Pretreatment Standards or requirements are called Categorical Industrial Users or CIUs. All CIUs are automatically considered Significant Industrial Users (SIUs). The categorical limits for each CIU are compared to their POTW's local limits (Allocation Table), and the more stringent limits are applied. The most common Categories used in NC are:
GENERAL INFORMATION ON CATEGORICAL REGULATIONSEPA Categorical (Effluent Guidelines) Website:
EPA National Service Center for Environmental Publications (NSCEP) - Online Publication Title Index :
EPA Industrial Wastewater Contacts In the Effluent Guidelines Program (Categorical Dischargers) EPA Guidance on New Sources Determinations and New Source Dates
The 40 CFR headers below link to EPA's effluent guidelines webpage, including Rules and Preambles, Development Documents and more. 40 CFR 414 - ORGANIC CHEMCIALS, PLASTICS, AND SYNTHETIC FIBERS (OCPSF)40 CFR 433 - METAL FINISHING
40CFR 439-Pharmaceutical |