To locate whether a product is included in the application scope of the standards we certify:

A) Look up the application scope of standards according to the type of product:

ELECTRONICS	NOM-001-SCFI-1993	Electronic Apparatus – Household Electronic Apparatus Fed by Different Sources of Electrical Power – Safety Requirements and Testing Methods for Type Approval
	NOM-016-SCFI-1993	Electronic Devices For Office Use Powered By Different Sources Of Electrical Energy – Safety Requirements And Testing Methods
	NOM-019-SCFI-1998	Safety of Data-processing Equipment
ELECTRIC	NOM-003-SCFI-2000	Electrical Products – Safety specifications
	NOM-058-SCFI-1999	Electrical products – Ballasts for electrical gas discharge lamps – Safety specifications
ENERGY	NOM-032-ENER-2013	Ceilings electric power for equipment and appliances that require standby power. Test methods and labeling

 
B) Search directly on the Secretary of Economy page.

Exclusions:

Importers are exempt of presenting a compliance certificate at the point of entry in the country when:

1. The product being imported has not been included in the application scope of a Mexican Official Standard.
2. No Mexican Official Standard applies to the product.
3. A competent agency, according to its criteria, understands that the Standard does not apply. Such is the case established by Article 10, Annex 2.4.1, according to which the Secretary of Economy Agreement issues general rules and criteria on foreign trade (NOMs Agreement).

Item XVI of the aforementioned agreement and article states that electric and electronic products powered by voltages of 24 V or lower are exempt of presenting a compliance certificate when included in Mexican Official Standards NOM-001-SCFI-1993 (Electronic Apparatus – Household Electronic Apparatus Fed by Different Sources of Electrical Power – Safety Requirements and Testing Methods for Type Approval), NOM-003-SCFI-2000 (Electrical Products – Safety Specifications), NOM-016-SCFI-1993 (Electronic Devices For Office Use Powered By Different Sources Of Electrical Energy – Safety Requirements And Testing Methods) and NOM-019-SCFI-1998 (Safety of Data Processing Equipment).

However, upon the interested party’s request UL may issue the corresponding compliance certificate for products powered by voltages of 24 V or lower. Submit the application form found in the PCO Services section of this Web site as well as the documentation required therein.

Note: This exception only applies to the aforementioned safety standards. Products must comply with consumer information standards and other valid corresponding provisions, according to Article 12, Annex 2.4.1 of NOMs Agreement.