On February 18, 2025, the parliamentary gazette published a resolution proposed by deputies of the PRI in the Chamber of Deputies about the levels of lead and arsenic in Monterrey.
Its first point reads: “La Cámara de Diputados del honorable Congreso de la Unión exhorta respetuosamente a la Secretaría” (The Chamber of Deputies of the honorable Congress of the Union respectfully urges the Ministry) of Environment and Natural Resources and the government of Nuevo León to investigate. Resolutions of this kind are called puntos de acuerdo.