WaterSense®
Labeled Homes

INTRODUCTORY GUIDE



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EPA-832-F-22-010
AUGUST 2022

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Welcome Home!

We hope this guide will help you understand how WaterSense labeled homes can make a positive impact
on your community. Choosing a WaterSense labeled home means making an investment in the future—an
investment that saves water and energy in your community, protects resources for future generations, and can
help save hundreds of dollars per year in utility bills compared to typical new construction.

THE PURPOSE

This guide is designed to provide an introduction to the WaterSense labeled homes program and the
certification process. The content will provide an overview of the benefits of engaging in the program, steps to
achieve WaterSense certification, and ways that stakeholders can get involved.

WHO IS THIS FOR?

This resource is for anyone who wants to learn about building, certifying, or buying WaterSense labeled homes.
Whether you are a utility, homeowner, builder, or verifier, this guide will help you understand the components of
a WaterSense labeled home and provide a roadmap for connecting with the appropriate professionals to achieve
certification.

DIG DEEPER!

Learn more with WaterSense's detailed
specification and certification materials, technical
and marketing resources, and more!
www.epa.gov/watersense/homes

Did you
know?

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Why WaterSense?

WATERSENSE LABELED HOMES: THE BENEFITS

The WaterSense label can help efficient homes stand out in a competitive high-performance building
marketplace. WaterSense labeled homes capitalize on consumer demand by offering homeowners a whole-
house solution that helps save water, energy, and money while maintaining a high level of performance.
Homeowners can save more than $700 in utility bills and reduce water use by up to 50,000 gallons annually.

FREE OF LEAKS

Homes are verified to
be free of visible water
leaks both inside and out,
reducing water waste and preventing
potentially costly damage.

SAVINGS THAT
PERFORM

WaterSense labeled toilets,
showerheads, and bathroom
sink faucets are reguired in every labeled
home. These fixtures are independently
certified to use less water and perform as
or better than standard models.

PEACE OF MIND

WaterSense labeled homes
are independently certified
to meet EPA's criteria for
efficiency and performance.











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FLEXIBILITY IN
MEETING EFFICIENCY

Applying a whole-house building
science approach gives builders the
freedom to select the most cost-effective
solutions in their market without sacrificing
water savings.


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What's in a WaterSense
Labeled Home?

All WaterSense labeled homes are independently certified to meet EPA's criteria for both efficiency and
performance.



MANDATORY CHECKLIST TO ENSURE QUALITY PERFORMANCE

LEAKS



o Pressure-loss test on all water supplies detects no leaks

o Free of visible leaks from all fixtures and appliances at point of use or point of connection
to water distribution system

O Toilets

o Bathroom faucets
o Showerheads

o Bathroom tub faucets, i.e., tub spouts
o Kitchen and other sink faucets

o Other fixtures or appliances (e.g., water heaters, clothes washers, dishwashers)

WATERSENSE LABELED PLUMBING FIXTURES

O Toilets

o Bathroom sink faucets
o Showerheads

EFFICIENCY REQUIREMENT

VERIFIED EFFICIENCY

o At least 30 percent more water-efficient than a typical new home (based on national
standards and common design and landscape practices).

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EPA Approved HCOs

EPA approved Home Certification Organizations (HCOs) go through an application and
approval process to ensure they have the organizational infrastructure to oversee the
certification of homes. They are also responsible for overseeing and training verifiers. As part
of the application process, a technical evaluation of their chosen method of measuring water
efficiency is carried out. EPA verifies that all methodologies can accurately and consistently
identify homes that are at least 30 percent more water-efficient than a typical new home.

Once approved, these methods are referred to as WaterSense Approved Certification Methods (WACMs), which
outline the reguirements for a home to meet the WaterSense efficiency reguirement. HCOs carry out other
responsibilities as well, including but not limited to:

Certification. HCOs have
authority over the decision to
certify a home and issue the
WaterSense label.

Training. HCOs train and authorize
WaterSense home verifiers to verify

homes in accordance with the
requirements established by EPA and
the HCO'sWACM.

Reporting. HCOs submit quarterly
reports to EPA providing details on
certified homes and authorized
WaterSense home verifiers.

It is important to understand the reguirements of an HCO's WACM when pursuing WaterSense certification, as
each method has distinct ways of measuring water efficiency. Features that can contribute to improved water
efficiency may include:

WaterSense labeled plumbing products and high-efficiency kitchen faucets
ENERGY STAR certified clothes washers and dishwashers
Efficient hot water delivery
Landscape size, design, and plant selection

Irrigation design and technology, including use of WaterSense labeled irrigation products
Landscape design or audit by WaterSense Irrigation Professional

Builders have the flexibility to select an HCO and WACM that best fits their needs and works with their existing
certifications (if applicable). An overview of EPA approved HCOs is included on the next page. More information
about their associated WACMs can be found at:

www.epa.gov/watersense/homes-certification

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Overview of EPA
Approved HCOs

HCO

SCOPE

METHOD FOR LABELING

REGIONALITY

BUILDING TYPES

CONSTRUCTION
TYPE

HOMES

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V

Single-Family

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New
Construction

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Achieve a score of 70
or less under CHEERS
WaterSense

GreenBuilder*

COALITION

^Pf

Single-Family

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New & Existing
Construction

l_- IIs

Achieve a score of 66
or less under the Water
Efficiency Rating Score
(WERS) with WaterSense
Baselines

r»: I NGBS
1 i GREEN

Home Innovation Research Labs



Single-Family &
Multifamily

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New & Existing
Construction

A

L * IIs

Complete a set of selected
practices from the National
Green Building Standard
(NGBS)



I	)

tm

New
Construction

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Achieve a score of 64 or
less under the Water Rating
Index





Single-Family

New & Existing
Construction

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L * IIs



H RESNET ¦

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Achieve a score of 70 or
less under HERSh2o







HCOs listed have been approved as of August 2022. For more information and the latest list of EPA approved
HCOs, please visit www.epa.gov/watersense/homes-certification.

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Home Verifiers

Boots on the Ground

Verifiers serve a critical role in the WaterSense labeled homes program.They
are responsible for verifying that homes meet the Mandatory Checklist and
water efficiency reguirement. WaterSense verification is a simple process
that can be done in one to two hours during a single site visit. If a verifier
identifies issues, they work with builders to resolve the problem before the
home earns the WaterSense label. Verifiers can also help guide builders
through the certification process.

Becoming a WaterSense Home Verifier

Verifiers can be independent or associated with home rating companies.
Individuals interested in becoming a WaterSense home verifier should
contact an HCO to obtain the reguired training.Training covers important
information on the WaterSense Specification for Homes and the HCO's
WACM. Once training is complete, the HCO will formally authorize a verifier,
meaning they can offer WaterSense verification services.

Verifiers who have been
trained and authorized
by an HCO are listed on
the WaterSense Verifier
Search Tool. Use this tool to
identify local verifiers who
can assist with WaterSense
certification.

www.epa.gov/watersense/
find-home-verifier

Promoting WaterSense Verification

Verifiers also perform an important role in marketing
WaterSense certification to builders, which includes
communicating the benefits of the WaterSense label and the
home's potential water, energy, and associated cost savings.

WaterSense provides verifiers with a promotional mark that includes the WaterSense label. Verifiers
may use this mark on their marketing materials.

WaterSense designed its specification to complement the criteria for other green home certification programs,
which makes it easy to integrate the WaterSense verification into home rating site visits. This minimizes additional
time and expense for builders, and allows verifiers to check a home's water- and energy-efficiency features
during the same site visit. Whether as a stand-alone certification or as an add-on to other green certifications, the
WaterSense label adds value for both verifiers and builders.

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Ready to Get Started?

Adding the WaterSense label—an independent certification backed by the EPA for both savings and
performance—helps provide assurance to home buyers in a competitive market where certifications matter and
consumers are looking for efficient homes. You can open the door to savings with WaterSense labeled homes.
Here's how:

BUILDERS

•	Partner with WaterSense! Partnership is free and reguired for any builder who wants to
earn the WaterSense label. Simply fill out WaterSense's brief online partnership agreement at
www.epa.gov/watersense/join-watersense.

•	Talk to verifiers with whom you work and see if they offer WaterSense certification. You can
also find a WaterSense home verifier in your area using the WaterSense Verifier Search Tool at
www.epa.gov/watersense/find-home-verifier.

•	Review the requirements of the WaterSense Mandatory Checklist found in the WaterSense specification at
www.epa.gov/watersense/homes-specification.

•	Ensure you will meet the water efficiency threshold by working with your verifier to understand the
HCO's WaterSense certification reguirements.

•	Design, build, certify, and market WaterSense labeled homes to your buyers.

VERIFIERS

•	Check the training requirements of your HCO(s). Every HCO will provide the WaterSense
program-specific training as well as their own specific program training.

•	Share opportunities for WaterSense certification with your builders and market your
services as a WaterSense home verifier. Verifiers in good standing will also automatically be
listed on the WaterSense Verifier Search Tool.

•	Complete home verifications to ensure each home meets all of the technical reguirements and work with
your builders to help them achieve WaterSense certification.

UTILITIES AND LOCAL GOVERNMENTS

•	Become a WaterSense Promotional Partner. By partnering with WaterSense, you can
access exclusive materials to communicate the value of water efficiency to consumers.

•	Incentivize WaterSense labeled homes and products through rebate programs, reduced
connection fees, or expedited permit reviews.These incentives can help encourage builders
to pursue water-efficient homes in your service area.

•	Spread the word about the importance of water efficiency to builders, homebuilder associations, and
prospective home buyers. Encourage customers to look for the WaterSense label when purchasing a new
home or water-using product. Help consumers learn about additional ways to save water through messaging
focused on specific water-efficient practices.

PHONE (866) WTR-SENS (987-7367) WEBSITEwww.epa.gov/watersense EMAILwatersense@epa.gov

SEPA

EPA-832-F-22-010
AUGUST 2022


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