Emergency quality standard for cement, imports included
Published 2 November 2026 · Diario Oficial de la Federación
What changed
NOM-EM-023-SE-2026 sets quality specifications, test methods and commercial information for hydraulic cement made, imported or sold in Mexico. It enters into force the business day after publication, but it cannot be enforced until the Ministry of Economy announces that enough accredited conformity-assessment bodies exist. An emergency standard lasts up to six months and can be extended once.
Who it affects
Building, electrical and lighting.
The source and its dates
Diario Oficial de la Federación, official standards index (Secretaría de Economía). Published 2 November 2026; in force from 3 November 2026 (the business day after publication (date from the DOF's standards index); enforceable only once the Ministry of Economy says enough certifiers exist). Checked against the source on 11 October 2026.
What to do
If you import or sell cement in Mexico, ask your supplier now for its NMX-C-414-ONNCCE-2017 certificate or test reports and its plan to certify under NOM-EM-023-SE-2026, which certifies per product and per plant, and watch for the Ministry of Economy's notice that certifiers are ready: from that day a certificate is required. Plan for the standard to run six months, possibly twelve.
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