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Articles by Sofía de Llano
LPG on the road: New emergency NOMs for transport and distribution
[co-author: Jane Winicki] Key takeaways NOM-EM-008-ASEA-2026 and NOM-EM-009-ASEA-2026 regulate, respectively, the transport and distribution of LPG; both will enter into force on October 6, 2026 and will remain in effect for six months. Assessments issued before that date under the prior emergency standards corresponding to each activity will be recognized until their expiration.
Mexico's new LGEEPA: second draft revises penalties, procedures and environmental impact assessment
Key takeaways The second draft retains the overall structure of the bill and its objective of repealing the LGEEPA in force since 1988, but significantly scales back the penalty regime. It reduces the maximum administrative fine from 7.5 million to 2 million UMA, replaces daily fines with weekly fines in cases of continuing non-compliance and expands the grounds for mitigation and for avoiding closure.
SEMARNAT publishes draft NOM establishing new requirements for managed aquifer recharge with treated wastewater
Key takeaways SEMARNAT has published on the Comprehensive Regulatory Governance Platform a Draft Amendment to NOM-014-CONAGUA-2003 proposing a comprehensive update to the regulatory requirements applicable to managed aquifer recharge systems using treated wastewater.
Draft of the New Water Rights Non-Forfeiture Fee Regulations
The Draft Regulations derives directly from the amendment to the NWL, which modified Article 29 Bis 3, Section VI, regarding the expiration of water rights and the Non-Forfeiture Fee mechanism to prevent such expiration. The legal amendment contemplated the issuance of new regulatory provisions to govern the determination, payment and extension of such fee, which are now reflected in the draft regulation published by the Federal Executive. What changes with respect to the current regime?
New NOM on Hazardous Waste Management Plans: Publication for Public Consultation
Key takeaways SEMARNAT published PROY-NOM-160-SEMARNAT-2026 to reopen the public consultation process for the regulation governing Hazardous Waste Management Plans. The new consultation stems from substantial amendments made to the draft originally published in 2011. The draft introduces new regulated entities, restructures the requirements applicable to management plans, and incorporates a Conformity Assessment Procedure.
New NOM on Hazardous Waste Management Plans: Publication for Public Consultation
On June 9, 2026, SEMARNAT published Draft Official Mexican Standard PROY-NOM-160-SEMARNAT-2026 (the “Draft Standard”), which seeks to establish the elements and procedures for the preparation of Hazardous Waste Management Plans. Interested stakeholders may submit comments during the 60-calendar-day period following publication, which is expected to expire on August 8, 2026.
New Environmental Law in Mexico: Presidential initiative proposes reshaping the federal environmental framework
Key takeaways The presidential initiative proposes the enactment of a new General Law of Ecological Balance and Environmental (“LGEEPA”) and the complete replacement of the federal environmental law currently in force since 1988. The proposal incorporates new instruments and a stricter environmental liability regime that could significantly impact the development, authorization and operation of projects subject to federal environmental regulation.
New Environmental Law in Mexico: Presidential initiative proposes reshaping the federal environmental framework
Key takeaways The presidential initiative proposes the enactment of a new General Law of Ecological Balance and Environmental (“LGEEPA”) and the complete replacement of the federal environmental law currently in force since 1988. The proposal incorporates new instruments and a stricter environmental liability regime that could significantly impact the development, authorization and operation of projects subject to federal environmental regulation.
Mining concessions: SCJN upholds public bidding
Key takeaways The Supreme Court confirmed that the new mining concessions regime through public bidding and with limited extension is constitutional and does not affect vested rights.
SEMARNAT: Administrative simplification of key procedures
On April 1, 2026, SEMARNAT published in the Federal Official Gazette two Administrative Simplification Accords that significantly modify the processing of federal environmental procedures, including environmental impact, wildlife, genetically modified organisms, and regulated substances. The Agreements reduce requirements, consolidate procedures, shorten decision timelines, update official forms and promote the use of digital tools.
Mining concessions: SCJN upholds public bidding
Key takeaways The Supreme Court confirmed that the new mining concessions regime through public bidding and with limited extension is constitutional and does not affect vested rights. For the industry, this implies that there is no automatic right to extensions or to maintain the previous regime, but only expectations subject to the new regulation.
New water availability zones for 2026: Impact on water use duties | JD Supra
Key takeaways CONAGUA published the values that determine national water availability zones for 2026. These variables directly affect the calculation of fees under the Federal Law of Fees.
New water availability zones for 2026: Impact on water use duties
Key takeaways CONAGUA published the values that determine national water availability zones for 2026. These variables directly affect the calculation of fees under the Federal Law of Fees. Changes in classification may result in significant increases or adjustments in the tax burden.
New carbon registry signals market shift in Mexico | JD Supra
Key takeaways Mexico is advancing its carbon market architecture through the development of the Mexican Registry for the Green Transition (“RMX”), a new national carbon crediting standard. RMX is expected to become a relevant source of offsets for Mexico’s Emissions Trading System and potentially for carbon tax mechanisms. The initiative signals emerging opportunities for project developers, investors, and companies pursuing decarbonization strategies.
New carbon registry signals market shift in Mexico
Key takeaways Mexico is advancing its carbon market architecture through the development of the Mexican Registry for the Green Transition (“RMX”), a new national carbon crediting standard. RMX is expected to become a relevant source of offsets for Mexico’s Emissions Trading System and potentially for carbon tax mechanisms. The initiative signals emerging opportunities for project developers, investors, and companies pursuing decarbonization strategies.
Mexico enacts Circular Economy Law: Extended Producer Responsibility and Product Design, guiding principles | JD Supra
Key takeaways Circular design becomes a legal obligation, not a voluntary best practice, subject to feasibility and future Extended Producer Responsibility implementation agreements. Extended Producer Responsibility will be rolled out gradually by sector/product, triggering concrete obligations through secondary regulation rather than automatically.
Mexico enacts Circular Economy Law: Extended Producer Responsibility and Product Design, guiding principles
General law on circular economy The LGEC establishes the foundations for transitioning from a linear economic model to one based on circular production and consumption, incorporating principles such as hierarchization, traceability, reparability, gradual implementation, and extended producer responsibility. The new framework is structured around three main operational pillars: a. REP as a central public policy instrument b.
Mexico strengthens its sustainable finance framework | JD Supra
The updated Reference Framework expands the Federal Government's ability to access international markets through green, social, blue, SDG-linked bonds and other thematic instruments, aligned with international principles such as those issued by ICMA and LMA. Unlike the previous framework, this update not only broadens the range of available instruments, but also deepens the technical criteria for the selection and reporting of financed projects.
Mexico strengthens its sustainable finance framework
The updated Reference Framework expands the Federal Government's ability to access international markets through green, social, blue, SDG-linked bonds and other thematic instruments, aligned with international principles such as those issued by ICMA and LMA. Unlike the previous framework, this update not only broadens the range of available instruments, but also deepens the technical criteria for the selection and reporting of financed projects.
New Water Regime in Mexico: Enactment of the General Water Law and Substantial Amendments to the National Water Law | JD Supra
[co-author: José Pablo Navarro] Key takeaways The Federal Executive has published in the Federal Official Gazette the Decree enacting the General Water Law (“LGA”) and simultaneously reforming and repealing various provisions of the National Water Law (“LAN”).
Draft of the New Water Rights Non-Forfeiture Fee Regulations
The Draft Regulations derives directly from the amendment to the NWL, which modified Article 29 Bis 3, Section VI, regarding the expiration of water rights and the Non-Forfeiture Fee mechanism to prevent such expiration. The legal amendment contemplated the issuance of new regulatory provisions to govern the determination, payment and extension of such fee, which are now reflected in the draft regulation published by the Federal Executive. What changes with respect to the current regime?
Mexico Tightens Environmental Corporate Crimes | JD Supra
Expanded corporate criminal liability The bill incorporates all environmental crimes into the catalog of offenses under Article 11 Bis for which legal entities may be held criminally liable. This would allow the imposition of sanctions and security measures, under the National Code of Criminal Procedure, on companies in connection with any environmental offense.
Mexico Sets Course for Circular Economy | JD Supra
Key takeaways Mexico proposes a General Law on Circular Economy (“LGEC”) establishing a unified national framework, new governance bodies, and binding circularity obligations across the value chain. Producers and importers would face mandatory Extended Producer Responsibility (EPR), including circular design, take-back systems, traceability, and registration of circular management schemes.
SEMARNAT: Key Reforms to the Forestry Regulations | JD Supra
Key takeaways All forestry procedures will migrate to mandatory electronic management. The authority's powers to suspend or revoke forestry procedures and acts are expanded. The notification system for commercial forest plantations is simplified. Existing plantations must submit notification six months prior to exploitation. Procedures and requirements are harmonized with the national forestry system and coordination with PROFEPA.
ASEA Launches Administrative Simplification Package | JD Supra
The new ASEA Simplification Accord introduces a series of regulatory improvements for five core procedures within the hydrocarbons sector, including Operating Licenses, the Operating License (LAU), and Notices of Operation and Maintenance. Key measures include: Merging of redundant procedures, such as the Authorization and Update of Operating Licenses (formerly ASEA-01-009-A and ASEA-01-010-A), now unified under the new code ASEA-2025-005-012-A.
CONAGUA: New digital one-stop shop | JD Supra
Next steps Companies holding water concessions or discharge permits should review which of their procedures will need to migrate to the VEDUTA platform and ensure that their legal representatives have an active Advanced Electronic Signature (FIEL). It is also advisable to verify that internal documentation (such as corporate powers of attorney and technical supporting files) is updated and ready for digital submission once the Agreement enters into force.
Mexico unveils 2025-2030 Environmental Sector Program | JD Supra
Key takeaways Strategic roadmap: Sets national priorities for environmental protection, natural resources, and climate resilience through 2030. Cross-cutting approach: Integrates biodiversity, water, waste, air quality, and climate action under a unified framework. Policy alignment: Ensures consistency with the National Development Plan and international environmental commitments.
New technical standard for natural gas processing facilities: NOM-019-ASEA-2024 officially published | JD Supra
Key takeaways New Standard: The newly issued NOM-019-ASEA-2024 regulates the design, construction, pre-startup, operation, and maintenance of natural gas processing facilities. Out with the old: This Standard officially replaces NOM-137-SEMARNAT-2013 and broadens its scope beyond sulfur compound emissions control to comprehensive industrial safety, operational safety, and environmental protection requirements.
New technical standard for Natural Gas Pipelines: NOM-020-ASEA-2024 officially published | JD Supra
Conduct a gap assessment to identify differences between current operations and the new NOM requirements. Update internal procedures and documentation to reflect the new technical and environmental standards. Plan and implement necessary adjustments to infrastructure or safety protocols before the February 2026 deadline. Train relevant teams on the new obligations to ensure company-wide compliance. Engage with ASEA if clarification or support is needed for implementation.
Daño al Ambiente: Suprema Corte redefine naturaleza y carga probatoria
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Transformación Hídrica en México: Diputados Presentan Iniciativa de Ley General de Aguas | JD Supra
El 25 de octubre de 2024, la Diputada Xóchil Nashielly Zagal Ramírez de la Fracción Parlamentaria de Morena, presentó en la Cámara de Diputados la Iniciativa de Ley General de Aguas, publicada en Gaceta Parlamentaria el 12 de noviembre de 2024, en cumplimiento a un mandato constitucional pendiente desde 2012. Resumen de la Exposición de Motivos México enfrenta su peor crisis hídrica en tres décadas, con el 65% del territorio nacional presentando algún grado de sequía.
Nueva Ley Ambiental Endurece la Regulación en CDMX | JD Supra
La nueva Ley Ambiental de la Ciudad de México que entró en vigor el 19 de julio de 2024, establece un marco normativo integral en la materia, con el objetivo de proteger y conservar el ambiente; pretende promover el desarrollo sostenible y la participación activa de la ciudadanía en la defensa del ambiente, endureciendo el régimen de responsabilidad ambiental y las sanciones aplicables.
Nueva Ley de Responsabilidad Ambiental CDMX incorpora un nuevo régimen y perfora el velo corporativo | JD Supra
Después de un amplio debate legislativo, el pasado 18 de julio del 2024, la Ciudad de México publicó en la Gaceta Oficial el Decreto por el que se expide la Ley de Responsabilidad Ambiental de la Ciudad de México (y se reforman y derogan otras disposiciones relacionadas). Objetivo y alcance. La LRA tiene como objetivo principal regular la responsabilidad que surge de los daños ocasionados al ambiente, a la salud de las personas y a los elementos artificiales del entorno.
ASEA modifica disposiciones sobre seguros para actividades de hidrocarburos. | JD Supra
La Agencia Nacional de Seguridad Industrial y de Protección al Medio Ambiente del Sector Hidrocarburos (“ASEA”) publicó en el Diario Oficial de la Federación el Acuerdo que afecta las regulaciones de seguros para quienes realizan actividades relacionadas con hidrocarburos, incluyendo el transporte, almacenamiento, distribución, compresión, descompresión, licuefacción, regasificación y expendio al público.
ASEA modifica disposiciones sobre seguros para actividades de hidrocarburos.
La Agencia Nacional de Seguridad Industrial y de Protección al Medio Ambiente del Sector Hidrocarburos (“ASEA”) publicó en el Diario Oficial de la Federación el Acuerdo que afecta las regulaciones de seguros para quienes realizan actividades relacionadas con hidrocarburos, incluyendo el transporte, almacenamiento, distribución, compresión, descompresión, licuefacción, regasificación y expendio al público.
Ejecutivo Federal presenta iniciativa que busca prohibir el fracking y la minería a cielo abierto.
El Presidente de la República presentó una iniciativa de reforma al artículo 27 de la Constitución Federal, que busca prohibir prácticas de fracturamiento hidráulico para la obtención de hidrocarburos y la minería a cielo abierto.
Nueva Norma Oficial Mexicana sobre emisiones de bióxido de carbono del escape de vehículos nuevos
Los Comités Consultivos Nacionales de Normalización de Medio Ambiente y Recursos Naturales y de la Secretaría de Economía publicaron la NOM-163-SEMARNAT-SCFI-2023, Emisiones de bióxido de carbono (CO2) provenientes del escape, aplicable a vehículos automotores nuevos de peso bruto vehicular de hasta 3,857 kilogramos.
Anuncia Estados Unidos Inversión en Planta de Metanol Verde en México
Con el fin de aumentar la capacidad de generación de energía limpia, Estados Unidos planea invertir 2,200 millones de Dólares en una planta de metanol verde en el Estado de Sinaloa.
Publica CONAGUA Proyecto de NOM para Regular Pozos de Extracción de Agua | JD Supra
El 23 de noviembre de 2023, la CONAGUA publicó en el Diario Oficial de la Federación el “Proyecto de Norma Oficial Mexicana PROY-NOM-016-CONAGUA-2023, Requisitos durante la construcción, operación, mantenimiento, rehabilitación y cierre de pozos para extraer agua del subsuelo” (el “Proyecto de NOM”). El objetivo del Proyecto de NOM consiste en establecer los requisitos a cumplir durante la construcción, operación, mantenimiento, rehabilitación y cierre de pozos para extraer agua del subsuelo.
Publica CONAGUA Proyecto de NOM para Regular Pozos de Extracción de Agua
La Comisión Nacional del Agua (la “CONAGUA”) publicó un Proyecto de nueva Norma Oficial Mexicana, a fin de aumentar la eficacia en la prevención de la contaminación de los acuíferos y conservar la calidad y cantidad del agua.
SEMARNAT Publica Nueva NOM sobre Sitios de Confinamiento de Residuos Peligrosos | JD Supra
El 1 de noviembre de 2023, la Secretaría de Medio Ambiente y Recursos Naturales (la “SEMARNAT”) publicó la Norma Oficial Mexicana “NOM-173-SEMARNAT-2023, Que establece los criterios para el diseño, la construcción, la operación y el cierre de un confinamiento controlado para residuos peligrosos” (la “NOM”).
SEMARNAT Publica Nueva NOM sobre Sitios de Confinamiento de Residuos Peligrosos
SEMARNAT publica una nueva Norma Oficial Mexicana, cuyo objetivo es establecer los lineamientos y requisitos necesarios para el diseño, construcción, operación y cierre de un sitio de confinamiento de residuos peligrosos.
CDMX Endurece Penas Ambientales y Tipifica el Delito de “Ecocidio”, Imputable a Personas Morales | JD Supra
El 6 de octubre de 2023, se publicó en la Gaceta Oficial de la Ciudad de México, el Decreto por el que se modifica el artículo 345 Bis y se adiciona el artículo 346 Bis, ambos del Código Penal para el Distrito Federal (hoy Ciudad de México) (el “Decreto”). El objetivo de dicho Decreto consiste en endurecer las penas de quienes resulten responsables de la comisión de delitos contra el ambiente, así como adicionar el delito de Ecocidio, conforme a los dos apartados siguientes.
CDMX Endurece Penas Ambientales y Tipifica el Delito de “Ecocidio”, Imputable a Personas Morales
El Congreso de la Ciudad de México reformó su Código Penal a fin de endurecer las penas derivadas de la comisión de delitos contra el ambiente e incorporar el tipo penal de Ecocidio. En ambos casos, su comisión puede ser imputable a personas físicas y morales.
Se declaran trece nuevas Áreas Naturales Protegidas en México | JD Supra
El 15 y 16 de agosto, la Secretaría de Medio Ambiente y Recursos Naturales (la “SEMARNAT”) publicó en el Diario Oficial de la Federación trece Decretos por los que se constituyen nuevas Áreas Naturales Protegidas (“ANPs”) dentro de los Estados de Baja California, Baja California Sur, Guerrero, Oaxaca y Quintana Roo. Las nuevas ANPs incluyen: siete “Áreas de Protección de Flora y Fauna” y seis “Parques Nacionales”.
Se declaran trece nuevas Áreas Naturales Protegidas en México
La Secretaría de Medio Ambiente y Recursos Naturales declaró trece nuevas Áreas Naturales Protegidas a lo largo de cinco Estados de la República. Lo anterior promoverá la conservación ambiental de dichas Áreas, y a su vez conllevará nuevas obligaciones y restricciones para las personas que cuenten con derechos adquiridos en las zonas en cuestión.
Cumplimiento de nuevas obligaciones derivadas de la Reforma Minera - Próximos a Vencer | JD Supra
Derivado del “Decreto por el que se reforman, adicionan y derogan diversas disposiciones de la Ley de Minería, de la Ley de Aguas Nacionales, de la Ley General del Equilibrio Ecológico y la Protección al Ambiente y de la Ley General para la Prevención y Gestión Integral de los Residuos” (la “Reforma Minera”) publicado en el Diario Oficial de la Federación el 8 de mayo de 2023, se adicionaron obligaciones para los concesionarios mineros.
SEMARNAT publica Cuotas de Garantía de No Caducidad de Derechos de Agua | JD Supra
El 14 de julio de 2023, la SEMARNAT publicó en el Diario Oficial de la Federación, el Oficio No. 349-B-224 mediante el cual la Secretaría de Hacienda y Crédito Público autoriza a la Comisión Nacional del Agua, bajo la figura de aprovechamientos, las cuotas por m³ aplicables para la determinación y pago de la cuota de garantía de no caducidad de derechos de aguas nacionales (el “Oficio”).
SEMARNAT publica Cuotas de Garantía de No Caducidad de Derechos de Agua
La Secretaría de Medio Ambiente y Recursos Naturales (la “SEMARNAT”) publicó el Oficio que contempla los montos de las cuotas a pagar por aquellos concesionarios que pretendan evitar la extinción por caducidad de los volúmenes de agua no explotados, con el fin de permitir su explotación a futuro El 14 de julio de 2023, la SEMARNAT publicó en el Diario Oficial de la Federación, el Oficio No. 349-B-224 mediante el cual la Secretaría de Hacienda y Crédito Público autoriza a la Comisión Nacional...
Juez otorga suspensión provisional contra Reforma Minera | JD Supra
El pasado 9 de mayo de 2023 entró en vigor el Decreto por el que se reforman, adicionan y derogan diversas disposiciones de la Ley Minera, de la Ley de Aguas Nacionales, de la Ley General del Equilibrio Ecológico y la Protección al Ambiente y de la Ley General para la Prevención y Gestión Integral de los Residuos, en materia de concesiones para minería y agua (el “Decreto”). El Decreto establece nuevas obligaciones aplicables a empresas con concesiones mineras.
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