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Mexico's NOM Mark: The Rules Nobody Tells You

Say you sell furniture into Mexico City through a distributor and it goes fine for a year. Then you add a lamp with a USB port to the range, and the next shipment is held at customs. The furniture sails through. The lamp needed a NOM certificate.

Mexico's Normas Oficiales Mexicanas, the NOM standards, apply selectively: some categories sail through, others can't cross the border without a certificate. These are the ones that matter, and what to do about them.

The NOMs that matter for most exporters

If you sell electronics or appliances into Mexico, these are the three you'll meet:

  • NOM-001-SCFI-2018 — safety requirements for electronic devices. This is the one that catches power supplies, chargers, and products with electronics inside, like that lamp with a USB port.
  • NOM-003-SCFI-2014 — safety for household electrical appliances: irons, heaters, toasters, that sort of thing.
  • NOM-024-SCFI-2013 — labeling and consumer information, in Spanish, on the product or packaging, with the importer's name and address.

If you sell apparel or textiles, add NOM-004-SCFI-2006, the textile labeling standard — fiber composition, care instructions and country of origin in Spanish. And products with any radio function go through the telecom regulator, IFT, not the standards authority. Different process, different certificate.

Who holds the certificate

Same story as Brazil, with its own flavour: the NOM certificate is issued to the Mexican importer of record. The foreign brand supplies product samples, specifications and test data; the importer certifies through an accredited body (NYCE, ANCE, Intertek and others operate in Mexico) and holds the certificate. Testing can often be done in accredited labs in the US or China, which keeps the process moving faster than in Brazil.

Customs verify the NOM certificate at the border. No certificate for a regulated category, no entry — and unlike some markets, there's no grace period or provisional clearance. The goods wait.

Plan for four to ten weeks and roughly one to five thousand US dollars per product family, with the importer usually covering the local leg of the cost.

Spanish labeling is non-negotiable

One point that surprises European and Asian exporters: Mexico enforces consumer information rules strictly, and everything must be in Spanish. NOM-024-SCFI sets out exactly what goes on the label — product name, importer details, electrical characteristics, warnings, country of origin. "We ship the same label worldwide" does not work here. Budget for Mexican-specific artwork before you print anything.

The nearshoring angle

Mexico has been one of the big stories of the last few years for manufacturers serving the US market, and a lot of small companies now have factories or assembly partners there. That doesn't exempt you from NOM. If anything, it changes the conversation: goods made in Mexico for the Mexican market need the same certificates as imported ones, and your contract manufacturer may not have them for your product. Ask before you assume.

What I'd tell a small brand

Pick your Mexican partner first, and treat NOM coverage as a selection criterion, not an afterthought. A distributor who already imports your category and holds current NOM certificates for similar products saves you months. One who has never heard of NOM-001 is about to learn on your shipment's downtime.

Then keep the certificate file alive. NOM certificates expire, product changes require updates, and the importer's name on the certificate must match the paperwork on the shipment. The most common failure we see isn't missing certificates — it's mismatched ones.

Mexico is a genuinely attractive market right now, and the compliance bar is lower than Brazil's and far more predictable. Get the three NOMs right, sort the Spanish label, and you've cleared the hard part. A live compliance page per product — the kind Sustalium publishes for €10 per document — also solves the language question: the same record serves your Spanish-speaking buyer in Mexico City and your English-speaking customers elsewhere, from the same data, and when the certificate renews the page updates without anyone re-sending anything. Nobody in that chain benefits from version confusion.

How Sustalium Helps with Mexico Market Entry

  • Language built in — publish each product's compliance page in Spanish and English from the same record, matching your label obligations.
  • Certificate tracking — NOM certificates expire and renew; a live page keeps your customs broker and buyer on the same current version.
  • One record, many markets — the same product data feeds NOM, CE, UKCA and FCC filings.

One Product, Two Languages, One Current Certificate

Keep the NOM certificate live, current and in Spanish for your Mexican partners. Start with a free draft and publish the verifiable version when you are ready.

[Start Your Mexico Compliance →](/compliance/mex-nom/){ .md-button .md-button--primary }

Frequently Asked Questions

Which NOM standard applies to my product?

NOM-001-SCFI-2018 covers electronic devices, NOM-003-SCFI-2014 household appliances, NOM-024-SCFI-2013 labeling, and NOM-004-SCFI-2006 textiles. Radio products go through IFT instead.

Do I need a Mexican entity to certify?

The certificate is issued to the Mexican importer of record. You supply samples, specifications and test data; the importer certifies through an accredited body.

Can testing happen outside Mexico?

Often yes — many accredited laboratories in the US and China can run the required tests, which keeps the process moving.

Last updated: September 6, 2026

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