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NOM-157-SEMARNAT-2026 Mining Waste Management Plans
05 OCT 26   |   LEGAL UPDATES

On September 9, 2026, Mexican Official Standard NOM-157-SEMARNAT-2026 was published in the Official Gazette of the Federation, establishing the elements and procedures for implementing mining waste management plans (the “NOM-157”). NOM-157 will enter into force on March 8, 2027, 180 calendar days after its publication. Upon its entry into force, NOM-157- SEMARNAT-2009, published on August 30, 2011, will cease to have effect.


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