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NSF/ANSI/CAN 60 and FIFRA: Scope Clarifications

We’ve received many questions regarding the scope of NSF/ANSI/CAN 60 certification and the U.S. EPA’s Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Certain categories of water treatment chemicals fall within the scope of both programs. This article provides information on the applicable certifications and/or registrations required for water treatment chemicals.

NSF/ANSI/CAN 60

Product certification to NSF/ANSI/CAN 60: Drinking Water Treatment Chemicals – Health Effects is required in most U.S. states and Canadian provinces and territories. It serves as an important tool to ensure the safety and suitability of chemicals used in the treatment of public drinking water supplies. This standard includes minimum requirements for the control of potential adverse health effects from chemicals (or associated contaminants within chemicals) added to water through its treatment, storage and distribution.

NSF/ANSI/CAN 60 was developed in 1988 at the request of the U.S. EPA Office of Water by a consortium of water supply stakeholder groups, including the American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA).

U.S. EPA FIFRA

FIFRA is the federal regulation that governs the registration, distribution, sale and use of pesticides in the U.S.1 The primary objective of FIFRA is to ensure that, when applied as instructed, pesticides will not generally cause unreasonable risk to human health or the environment. The EPA defines a pesticide as any substance or mixture of substances intended for preventing, destroying, repelling or mitigating any pest or intended for use as a plant regulator, defoliant, desiccant or nitrogen stabilizer.

Pesticide products, such as disinfectants, fall under the scope of FIFRA and require registration by the product manufacturer or distributor. Registration requires the chemical manufacturer to submit all requested applications, use instructions, chemical information and safety data for the pesticide product to the EPA Office of Pesticides. The FIFRA registration program includes chemical label registration and monitoring of other parameters such as warning label information and product efficacy claims.

Important Similarities and Differences

The differences in scope between NSF/ANSI/CAN 60 and FIFRA can be hard to navigate since there are chemicals that fall within the scope of both. What’s important to note is that the requirements of NSF/ANSI/CAN 60 and FIFRA are independent of one another, although both may apply to the same water treatment chemical product. In other words, FIFRA registration is not a requirement or pre-requisite of NSF/ANSI/CAN 60 for any chemical and vice versa.

Location also plays a role. NSF/ANSI/CAN 60 addresses human health effects (exclusively) and is referenced globally as a standard for drinking water treatment chemicals, whereas FIFRA requirements apply only to chemicals used in the U.S. Thus, based on where the chemical supplier is manufacturing, distributing and selling its product, many chemicals are required by drinking water regulations to have both NSF/ANSI/CAN 60 certification and FIFRA registration.

Note: These are examples and not an exhaustive list of chemicals.
Chemicals that require NSF/ANSI/CAN 60 certification, but not EPA FIFRA registration
Aluminum sulfate (alum)

Polyaluminum chloride (PAC)

Sodium carbonate (soda ash)

Sodium silicate

Calcium oxide (quicklime)
Chemicals requiring both NSF/ANSI/CAN 60 certification and EPA FIFRA registration when being used in drinking water
Chlorine

Sodium hypochlorite (bleach)

Calcium hypochlorite

Copper sulfate
Chemicals requiring EPA FIFRA registration but do not require (and are not covered under the scope of) NSF/ANSI/CAN 60 certification
Fungicide chemicals

Herbicide chemicals

Insecticide chemicals

Rodenticide chemicals

Other agricultural pesticide chemicals used to prevent the effectivity of pests on the growth and productivity of crops

Drinking Water Treatment Chemicals Certification

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Sources

1 U.S. EPA, Summary of the Federal Insecticide, Fungicide, and Rodenticide Act, 7 U.S.C. §136 et seq. (1996), available at https://www.epa.gov/laws-regulations/summary-federal-insecticide-fungicide-and-rodenticide-act

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