Effluent Guidelines

Industrial Effluent Guidelines

Photos of industries

Effluent Guidelines are national standards for industrial wastewater discharges to surface waters and publicly owned treatment works (municipal sewage treatment plants). We issue Effluent Guidelines for categories of existing sources and new sources under Title III of the Clean Water Act. The standards are technology-based (i.e. they are based on the performance of treatment and control technologies); they are not based on risk or impacts upon receiving waters.

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Regulations Under Development

Industry Studies

Existing Regulations Being Studied for Possible Revisions

Existing Regulations

The table below lists the Effluent Guidelines promulgated by EPA, organized by industry category.
  • For some of the regulations, the links in the 'Category Overview' column provide a summary of the regulation and available EPA publications for the category.
  • The links under '40 CFR' go directly to the Code of Federal Regulations (CFR). 'Initial' indicates the year of the first rulemaking for the category, and 'Last' indicates the most recent substantive revision.
Category Overview 40 CFR Initial Last
    449 2012 2012
Aluminum Forming     467 1983 1988
Asbestos Manufacturing     427 1974 1975
Battery Manufacturing     461 1984 1986
Canned and Preserved Fruits and Vegetable Processing     407 1974 1976
Canned and Preserved Seafood (Seafood Processing)¹     408 1974 1975
Carbon Black Manufacturing     458 1976 1978
Cement Manufacturing     411 1974 1974
Centralized Waste Treatment²     437 2000 2003
Coal Mining     434 1975 2002
Coil Coating     465 1982 1983
Concentrated Animal Feeding Operations (CAFO)     412 1974 2008
Concentrated Aquatic Animal Production (Aquaculture)     451 2004 2004
Construction and Development     450 2009 2014
Copper Forming     468 1983 1985
Dairy Products Processing     405 1974 1974
Electrical and Electronic Components     469 1983 1983
Electroplating     413 1974 1983
Explosives Manufacturing     457 1976 1976
Ferroalloy Manufacturing     424 1974 1974
Fertilizer Manufacturing     418 1974 1974
Glass Manufacturing     426 1974 1974
Grain Mills     406 1974 1974
Gum and Wood Chemicals Manufacturing     454 1976 1976
Hospitals     460 1976 1976
Ink Formulating     447 1975 1975
Inorganic Chemicals Manufacturing     415 1982 1982
Iron and Steel Manufacturing     420 1974 2005
Landfills     445 2000 2000
Leather Tanning and Finishing     425 1982 1996
Meat and Poultry Products     432 1974 2004
Metal Finishing²     433 1983 1986
Metal Molding and Casting (Foundries)     464 1985 1985
Metal Products and Machinery     438 2003 2003
Mineral Mining and Processing     436 1975 1979
Nonferrous Metals Forming and Metal Powders     471 1985 1985
Nonferrous Metals Manufacturing     421 1976 1990
Oil and Gas Extraction     435 1975 2016
Ore Mining and Dressing (Hard Rock Mining)     440 1975 1988
Organic Chemicals, Plastics and Synthetic Fibers (OCPSF)     414 1987 1993
Paint Formulating     446 1975 1975
Paving and Roofing Materials (Tars and Asphalt)     443 1975 1975
Pesticide Chemicals     455 1978 1996
Petroleum Refining²     419 1974 1982
Pharmaceutical Manufacturing     439 1976 2003
Phosphate Manufacturing     422 1974 1974
Photographic     459 1976 1976
Plastics Molding and Forming     463 1984 1984
Porcelain Enameling     466 1982 1982
Pulp, Paper and Paperboard     430 1974 2002
Rubber Manufacturing     428 1974 1974
Soap and Detergent Manufacturing     417 1974 1975
Steam Electric Power Generating     423 1974 2015
Sugar Processing     409 1974 1984
Textile Mills     410 1974 1982
Timber Products Processing     429 1974 1981
Transportation Equipment Cleaning     442 2000 2000
Waste Combustors     444 2000 2000
¹ Amendment pending   ² Industry study

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