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Updated June 3, 2021
WaterSense® Program: Congressional Authorization

WaterSense is a voluntary labeling program created by the
U.S. Environmental Protection Agency (EPA) to encourage
the development and use of water-efficient products and
services. Through WaterSense, EPA develops water
efficiency specifications for products, certain services, and
homes; licenses third-party certification bodies; and
maintains a registry of WaterSense-labeled products and
certified services.
EPA initially established WaterSense in 2006. The 115th
Congress authorized and expanded WaterSense in
America's Water Infrastructure Act of 2018 (AWIA; P.L.
115-270), Section 4306 (42 U.S.C. §6294b).
Funding levels for WaterSense have remained consistent
for several years, notwithstanding the Trump
Administration's FY2018 through FY2021 proposals to
eliminate such funding. The Biden Administration does not
propose an elimination for WaterSense funding in FY2022.
FY2021 funding for WaterSense is the same as the FY2020
and FY2019 enacted funding levels of $4.5 million,
according to the joint explanatory statement that
accompanied the Consolidated Appropriations Act, 2021
(P.L. 116-260). A description of the WaterSense program,
authorization, and revisions follows.
Figure I. WaterSense Labels
Label for products that  Label for promotional
have been irdependently  partners to eno rage use of
certied to meet EPA  WaterSenselabeled products,
Wat r5ense criteria.    services, and homes.
Source: EPA.gov.
Note: Compiled by CRS.
Program     Design
WaterSense supports voluntary partnerships with service
providers, manufacturers, retailers, and other organizations
that manufacture, distribute, certify, or promote
WaterSense-labeled products, homes, and/or services.
The WaterSense program design is similar to ENERGY
STAR, another voluntary labeling program established by
EPA in 1992. The Department of Energy and EPA jointly
administer ENERGY STAR, which was authorized in the
Energy Policy Act of 2005 (P.L. 109-58, §131). For more
information, see CRS In Focus IF10753, ENERGY STAR
Program, by Corrie E. Clark.

Under WaterSense, EPA establishes water efficiency
specifications for products, services, and homes. These
specifications also identify which testing protocols should
be used to evaluate the product. EPA requires
manufacturers, service providers, and home builders who
wish to use a WaterSense label to have their products,
services, and homes certified that they achieve the water
efficiency specification. Third-party organizations provide
the certifications. EPA licenses these certification
organizations, which must also maintain accreditation from
EPA-approved accreditation bodies.
Products
EPA has issued WaterSense specifications for a variety of
products, including residential toilets, showerheads,
bathroom faucets, commercial toilets, urinals, irrigation
controllers, and spray sprinkler bodies.
To obtain certification to use a WaterSense label,
manufacturers must first develop products that meet EPA
specifications. EPA states that a water-efficient product
should generally (1) reduce water use by at least 20% from
federally mandated water-use conservation standards and
(2) function at least as well as regular models. For products
without federal standards, such as irrigation equipment,
WaterSense certifications are based on calculations of
average efficiency.
Manufacturers may submit their products to accredited
third-party organizations for certification that the products
comply with established water efficiency specifications.
Once a product is certified, it does not have to be
recertified. However, EPA requires certification
organizations to conduct annual market surveillance on at
least 15% of the models that it has certified for each
product category and report the results to EPA.
Manufacturers of WaterSense-labeled products sign a
partnership agreement with EPA. In the agreement, EPA
expects manufacturers to report the number of WaterSense-
labeled products sold annually. EPA uses this data to
calculate water and energy savings attributable to the
WaterSense program as well as the return on investment.
EPA's 2018 WaterSense Accomplishments report states
that over 30,000 product models have been certified. More
than half of these products are faucet models.
Irrigation Services
EPA issued WaterSense specifications to certify irrigation
services in June 2014. To earn a WaterSense certification,
irrigation service providers must have specific professional
experience and demonstrate their applied knowledge

ittps://crsreports.congress.gov

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