Mexico's Ministry of Economy, in coordination with the National Commission for the Efficient Use of Energy (CONUEE), has updated the regulatory references in Annex 2.4.1 of the Foreign Trade Rules to include NOM-014-ENER-2025. This standard governs the energy efficiency of single-phase AC electric motors and is now formally required for import and commercialization in Mexico as of May 29, 2026.

All imports and sales of single-phase AC motors (0.180 kW to 2.238 kW) must demonstrate compliance with NOM-014-ENER-2025 through mandatory Certificates of Conformity before entering the country. The initial efficiency limits and marking rules, effective since November 30, 2025, remain in force, replacing the previous NOM-014-ENER-2004. A second stage of stricter efficiency values and updated evaluation methods will come into effect on June 2, 2027.

The update ensures that imported motors meet the latest technical specifications, test methods, and commercial information requirements, promoting energy efficiency and fair competition between domestic and imported products. A transition period is recognized for certificates issued under previous standards, allowing their use until expiration.

This regulatory change is part of a broader effort covering four NOM-ENER standards, now representing 73% of all product energy efficiency standards in force in Mexico. The measures reinforce customs controls, protect the national market, and ensure that end users benefit from higher quality and more efficient products.

This update is classified as High Impact.

Key reasons for high impact:

• Mandatory certification and compliance for all imports and sales of single-phase AC electric motors (0.180 kW to 2.238 kW).
• Customs clearance now requires Certificates of Conformity referencing NOM-014-ENER-2025.
• Existing certificates under previous standards remain valid only until their expiration, requiring transition planning.
• New efficiency limits and evaluation methods will be enforced in a second stage from June 2027.

Who is affected?

Importers, manufacturers, and distributors of single-phase AC electric motors. Certification bodies and testing laboratories. Customs brokers and logistics operators. Industrial and commercial users of electric motors.

Conclusion:

The regulation imposes immediate and broad compliance obligations on a significant product category, affecting both market access and ongoing operations for a wide range of stakeholders.