Specifications and Test Methods for Mexican Official Standard NOM-005-ENER-2012, Energy Efficiency for Household Washing Machines.

This Mexican Official Standard establishes the levels of Energy Factors and energy consumption that Household Washing Machines must comply with. This Standard also establishes the test methods which must be used to verify compliance and labelling.


This Mexican Official Standard applies to all household washing machines traded and installed in the national territory.


This Mexican Official Standard does not apply to washing machines that do not use electrical energy, or industrial and commercial washing machines.

Compliance with the standard

Companies based in Mexico that manufacture, import sell, and/or distribute the product type in the scope of the standard must comply with this regulation.

Compliance is verified through testing processes and certification and only companies based in Mexico may obtain a certificate of compliance with the standard.

Certification Schemes

Scheme Description Validity*
I Certification through surveillance through periodic testing to the product. 1 year
II Certification with verification through the quality management system of the production line. 3 years
*Subject to results of the surveillance process