New Thermal Efficiency Regulation for Water Heaters Takes Effect on March 3, 2022

Published February 3, 2022/Mexico

On March 3, 2022, the NOM-003-ENER-2021, published on September 15, 2021, will become fully activated, enforcing new requirements on the thermal efficiency of water heaters for domestic and commercial use.

This new regulation establishes the following:

Updates the minimum thermal efficiency parameters that must be met by gas water heaters that use LP gas or natural gas.
Incorporates test methods according to the devices’ normal operation in homes.
New labeling to assist and clarify information for the consumer. The traditional yellow energy efficiency label has been redesigned.
Incorporates the new conformity assessment procedure to standardize its certification process.

Mexico Quick Facts

Regulatory Agency	IFT (Instituto Federal de Telecomunicaciones)
Certification Type	Mandatory
License Validity	Final Homologation Certificate: permanent
Application Language	Spanish
Legal License Holder	Required
In-country Testing Requirement	Depending on the product

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