Mexico: Mexico Enacts Constitutional Amendment on the Protection of Native Corn

On March 17, 2025, Mexico adopted a constitutional amendment banning domestic cultivation of “genetically modified” corn – defined as corn “produced with techniques that overcome the natural barriers of reproduction or recombination, such as transgenics” – and requiring “any other use” of such corn to be evaluated “to be free of threats to the biosafety, health and biocultural heritage of Mexico and its population.” While the amendment codifies a longstanding de facto ban on cultivation, it leaves ambiguous the scope of restrictions on “other use[s],” such as corn grain imported for food or feed use.