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WaterSense Labeled Homes Program

Home Certification Organization: RESNET

The U.S. Environmental Protection Agency's (EPA) WaterSense® program works with Home Certification
Organizations (HCOs) to certify and issue the WaterSense label to homes that meet EPA's criteria for both
water efficiency and performance.

What's in a WaterSense Labeled Home?

All WaterSense labeled homes are independently certified to meet EPA's Mandatory Checklist and be at least
30 percent more water-efficient than a typical new home.





MANDATORY CHECKLIST TO ENSURE QUALITY PERFORMANCE

LEAKS

Q 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).

What is a Home Certification Organization's Role in Labeling Homes for
WaterSense?

Wthin the WaterSense Labeled Homes Program, HCOs are responsible for quality assurance, verifier training
and oversight, home verification protocols, and reporting. HCOs also maintain their own certification method
(reviewed and approved by EPA) to evaluate a home's water efficiency and determine whether it meets EPA's
efficiency requirement. This WaterSense Approved Certification Method (WACM) can include features such
as water-efficient fixtures, appliances, and systems (e.g., irrigation and hot water delivery) that builders can
include in homes to meet the efficiency requirement. Keep reading to learn more.

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How Builders Can Get Involved:

Are you a builder ready to get started? Partner with WaterSense and visit www.epa.gov/watersense/
watersense-labeled-homes to learn more.


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HCO Profile: RESNET

RESNET is a national non-profit organization founded in 1995. RESNET develops standards for the
certification and oversight of home energy and water ratings and the certification of individuals who conduct
those ratings. With its network of more than 2,500 active and certified Home Energy Rating System (HERS)
Raters and Rating Field Inspectors, RESNET has a footprint in all 50 states. RESNET also accredits the
software used to complete ratings and a network of quality assurance providers that are responsible for the
oversight of energy and water ratings.

Method for Labeling Homes:

HERSH20

RESNET uses HERS H2o for WaterSense certification.
HERSH2o is based on the nationally accredited
standard ANSI/RESNET/ICC 850. To earn the
WaterSense label through HERSmo, a home must
achieve a score of 70 or less and adhere to the
items on WaterSense's Mandatory Checklist.

Since HERSH2o is a performance-based program,
builders can use any combination of indoor and
outdoor water efficiency measures to
achieve the target score.

Scope

A HERSH2o rating can be done on both new
and existing single-family and duplex homes,
including townhomes. Homes in all 50 states
in the United States, as well as the District of
Columbia and Puerto Rico, are eligible for a

HERSH2o rating.

HERSh20

Alignment With Other
Certification Programs

Information for
Verifiers

HERSH2o was designed to be easily added to
a HERS rating. HERS Raters and Rating Field
Inspectors who have been trained and authorized
as WaterSense Home Verifiers only need to
complete a few additional testing and inspection
reguirements during their final HERS inspection
in order to issue a HERSmo rating and verify that
a home has earned the WaterSense label. This
process makes it easy for builders to use one
Rater to obtain HERS and HERSmo ratings, the
WaterSense label, and ENERGY STAR® certification.

Certified RESNET HERS Raters, Rating Field
Inspectors, and California HERS Raters are
eligible to become HERSmo Raters and
WaterSense Home Verifiers. They can do
so by completing an online HERSmo Rater
Training on the RESNETTraining Portal and
viewing the WaterSense Labeled Homes
Version 2 training video. HERSmo Raters
are also reguired to work under a RESNET
Accredited HERSmo Rating Provider.

For more information about RESNET, visit: www.resnet.us/about/hersh2o/

&EPA

APRIL 2022


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