What is NOM？
　　The Normas Oficiales Mexicanas (NOM) mark is a mandatory safety mark in Mexico to indicate that a product complies with the relevant NOM standard. The NOM mark applies to a wide range of products, including telecommunications and information technology equipment, household electrical appliances, lamps and other products with potential health and safety hazards. Both locally manufactured and imported products in Mexico must comply with the relevant NOM standards and product labeling requirements. NOM certification is mainly for the security part of the certification requirements.

Under Mexican law, NOM's licensee must be a Mexican company responsible for the quality, maintenance and reliability of the product. The test report is issued by a Secofi-accredited laboratory, reviewed by SECOFI,ANCE or NYCE, and if the product complies with the relevant regulatory requirements, a certificate is issued to the Mexican representative of the manufacturer or exporter before the product can bear the NOM mark.

>There are two types of certification units in Mexico that can issue NOM Mark

　　-NOM NYCE:The scope of verification includes all electronic and information products and data processing equipment, but does not include household appliances (except microwave ovens)

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　　 -NOM ANCE:The scope of verification includes all electrical appliances and similar products (e.g. home appliances)
　　- IEC standard is not applicable, NOM standard is applicable
　　- No EMC testing required

　　2）Technical information
　　- The Mexican voltage is 127V/60Hz

- The plug is the same as the American plug. One is a ClassI with three connection headers, and the other is a ClassII with two connection headers. The plug will be tested with the device itself
 
　　3）certificate
　- The certificate is valid for one year and can be renewed annually

- When renewing the certificate, a random sample of the product from the market should be taken in advance to send to the laboratory for testing

- Product packaging should include the following information: product name, brand name, model number and NOM certification mark

 
　　4）Document requirement
  - CB test report and certificate

- Name, address and contact person of the importer or distributor in Mexico

- Test data, design drawings, specifications and circuit drawings

- Spanish label

- Original user's manual in Spanish

- Additional documentation required by a sample importer or distributor

- Copy of the company's authorization letter - copy of the company's uniform number

- Evidence of Authorization (PowerofAttorney)

- Legal agency official documents

- Letter paper printed with company name

- Photocopy of registered company with tax proof

　　5) Factory inspection
　　  no need

　　6) test sample
　　One to three test samples (depending on the product)
 
　　7) Audit time
　　5 to 6 weeks after all documents are filed, once the NOM application is completed, a copy of the certificate and report will be sent to the local agent in Mexico. The original company will receive a fax copy of the certificate and report. The agent should keep the original certificate and report as reference for future inspection.
 
　　8) Mutual recognition of certification in North America
　　The Mexican Government published a new resolution in the Official Gazette of August 17, 2010, affirming the equivalence between Mexico's three NOM standards and their counterparts in the United States and Canada. Therefore, for the following electrical and electronic products imported from Mexico, as long as the application for North American certification marks (such as: UL, CSA, ETL, MET, etc.) can enter the Mexican market, there is no need to apply for NOM certification.

· TUVus conducts factory inspections four times a year and cTUV twice a year. If both are applied for, the annual factory inspection is four times. This factory inspection can be combined with other certificates such as TUV/GS, Japanese S-Mark or Argentine S-Mark.