WTO notification · TBT
MexicoProposed measure, may since have been adopted
Draft Modification of Official Mexican Standard NOM-157-SEMARNAT-2009, Which establishes the elements and procedures to implement mining waste management plans, to become Draft Official Mexican Standard PROY-NOM-157-SEMARNAT-2025, Which establishes the elements and procedures to implement mining waste management plans
Proyecto de Modificación de la Norma Oficial Mexicana NOM-157-SEMARNAT-2009, Que establece los elementos y procedimientos para instrumentar planes de manejo de residuos mineros, para quedar como Proyecto de Norma Oficial Mexicana PROY-NOM-157-SEMARNAT-2025, Que establece los elementos y procedimientos para instrumentar planes de manejo de residuos mineros
Mexico notified this proposed TBT measure to the WTO on 30 January 2026. The comment period closed on 31 March 2026.
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Source: WTO ePing (opens in a new tab). Summaries by Expodite, which is independent of the WTO.
Published here:
It is of mandatory observance for those who generate and possess mining waste
Es de observancia obligatoria para quienes generen y posean residuos mineros
The comment period closed on 31 March 2026. You can still raise concerns about the measure with your country's WTO TBT enquiry point, quoting the document symbol G/TBT/N/MEX/557; it can take them up with Mexico.
Find your country's enquiry point on WTO ePing (opens in a new tab)The notified draft Mexican Official Standard establishes the elements and procedures that must be considered when developing and implementing mining waste management plans, with the aim of promoting waste prevention and recovery, and encouraging comprehensive waste management through new processes, methods and technologies that are economically, technically and environmentally feasible. The notified draft text is binding on those who produce and possess mining waste.The draft text addresses the following aspects:G/TBT/N/MEX/557- 2 - (a) Updating the list of mining waste by removing waste that is not unique to mining processes and adding other waste specific to mining activities;(b) Introducing the option of a comprehensive study as part of the characterization of mining waste with the aim of generating detailed and accurate information to anticipate potential environmental impacts;(c) Introducing general criteria for integrated management activities;(d) Updating the Conformity Assessment Procedure.For these reasons, the specifications set out in the notified draft text aim to promote the development of mining waste management plans that lead to the implementation of practices that minimize waste generation and promote the recovery of such waste, where feasible.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
WTO notificationSPSProposed measure, open for commentsNew
In accordance with the Agreement on the Application of Sanitary and Phytosanitary Measures, it is notified that the Secretariat of Agriculture and Rural Development (Secretaría de Agricultura y Desarrollo Rural, SADER) determined the proposal for a decree on the prohibition of pesticides in the…
Symbol: G/SPS/N/MEX/479Comments until 8 January 2027
WTO notificationTBTProposed measure, open for commentsNew
Mexico notified this proposed TBT measure to the WTO on 4 November 2026. Comments are open until 3 January 2027.
Symbol: G/TBT/N/MEX/589Comments until 3 January 2027
WTO notificationTBTEmergency measure, may already applyEmergencyNew
Mexico notified this emergency TBT measure on 4 November 2026. Emergency measures can apply immediately.
Symbol: G/TBT/N/MEX/588
WTO notificationSPSProposed measure, open for commentsNew
Mexico notified this proposed SPS measure to the WTO on 22 October 2026. Comments are open until 21 December 2026.
Symbol: G/SPS/N/MEX/478Comments until 21 December 2026
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