Mexico's Executive Branch Publishes Proposed Comprehensive Overhaul of LGEEPA

Mexico's executive branch published a draft of a bill on August 18, 2026, proposing a comprehensive renovation of the General Law of Ecological Balance and Environmental Protection (Ley General del Equilibrio Ecológico y la Protección al Ambiente or LGEEPA). LGEEPA is Mexico's primary environmental framework law and has been in effect since 1988. It is comparable to a combination of the National Environmental Policy Act (NEPA), Clean Air Act and Clean Water Act in the United States. The proposed reform is a full rewrite – not a simple amendment – replacing the current law's structure with new instruments, enforcement mechanisms and institutional arrangements. The bill is expected to enter Mexico's Congress in September 2026, with the legislative session already underway.

This Holland & Knight alert summarizes the most significant proposed changes and potential implications for companies with operations or investments in Mexico.

Background and Legislative Context

• LGEEPA has been in force since 1988 and has undergone multiple amendments, but the current initiative represents the first attempt at a complete structural renovation of the statute.
• The current initiative was first published on June 20, 2026, with a revised second version released on August 18, 2026.
• The bill was prepared by the executive branch and is expected to be submitted to Congress during the September 2026 ordinary legislative session (periodo ordinario).
• The final text is subject to modification during congressional debate.

Key Policy Principles and Guiding Framework

• The bill introduces or reinforces several guiding principles, including in dubio pro natura (in case of doubt, decisions must favor environmental protection), the precautionary principle, intergenerational solidarity and environmental justice.
• A new "right to a healthy environment" is explicitly codified, along with a prohibition on "environmental regression" (retroactividad ambiental), meaning that future regulations may not weaken existing environmental standards.
• These principles could significantly expand the legal basis for regulatory challenges, citizen enforcement actions and judicial interpretation of environmental obligations.

Penalties: A Dramatic Increase

• The proposed reform would multiply maximum fines by up to 40 times compared with current levels. The following summarizes the key changes:
• The current maximum fine for general violations is 50,000 Unidad de Medida y Actualización (UMA) days (MX$5.43 million/US$271,500).
• The proposal increases fines to 2 million UMA days (MX$217.26 million/US$10.86 million).
• For violations involving natural protected areas or threats to human health, the proposed maximum doubles to 4 million UMA days (MX$434.52 million/US$21.73 million).
• Minimum fines would also increase substantially, from 30 UMA days (MX$3,258/US$163) to 200 UMA days (MX$21,726/US$1,086).
• Fines may be doubled on a second offense, effectively quadrupling the maximum exposure for repeat violators.
• These increases represent a transformative shift in enforcement economics and could materially affect compliance cost-benefit analyses for companies operating in Mexico.

Environmental Offenders Registry

• The bill creates a new Environmental Offenders Registry (Registro de Infractores Ambientales), a database of individuals and entities that have been sanctioned for environmental violations.
• Inclusion in the registry could result in reputational harm, restrictions on government contracting, and potential impacts on financing and insurance, including posting of financial guarantees before obtaining new environmental permits or delays in securing additional environmental permits.
• Registered entities are barred from federal government support programs, and restriction could last for seven to 10 years.
• The registry introduces an environmental, social and governance (ESG)-relevant risk factor for companies, as listed entities may face scrutiny from investors, lenders and business partners.

Strategic Environmental Assessment (EAE)

The reform introduces the Strategic Environmental Assessment (Evaluación Ambiental Estratégica or EAE), a new instrument requiring environmental review of public policies, government programs and development plans – not just individual projects.

Institutional and Structural Changes

• The bill proposes the creation of new institutional bodies, including a National Environmental Planning Council and strengthened technical advisory committees.
• The internal structure of Mexico's Ministry of Environment and Natural Resources (Secretaría de Medio Ambiente y Recursos Naturales or SEMARNAT) would be reorganized to align with the new law's expanded scope, with dedicated units for climate change, biodiversity and circular economy.
• The reform envisions greater coordination between environmental authorities and other government agencies (e.g., energy, mining, agriculture) through mandatory inter-institutional consultation mechanisms.
• Mexico's Federal Attorney for Environmental Protection (Procuraduría Federal de Protección al Ambiente or PROFEPA) would be renamed the "Federal Environmental Justice Agency" (Procuraduría Federal de Justicia Ambiental).

Expansion of Enforcement and Inspection Powers

• The Federal Environmental Justice Agency would receive expanded authority, including the issuance of precautionary measures (medidas cautelares) to prevent imminent environmental harm or act as the "offended party" in criminal proceedings.
• The bill introduces new enforcement tools, including environmental audits with binding corrective action plans, enhanced whistleblower protections and broader standing for citizen complaints (denuncia popular).
• Companies should expect a more aggressive enforcement posture, with greater emphasis on deterrence and compliance monitoring.

Centralization of Environmental Authority

• The reform would recentralize several environmental competencies currently delegated to state and municipal governments, consolidating authority at the federal level under SEMARNAT and the Federal Environmental Justice Agency.
• This could reduce regulatory fragmentation but may also create bottlenecks in permitting, particularly for projects that currently benefit from streamlined state-level procedures.
• Companies with multijurisdictional operations should assess how the shift in regulatory authority could affect their permitting timelines and compliance obligations.

Environmental Impact Assessment (EIA): Revised Timelines and Procedures

• The bill proposes significant changes to the Environmental Impact Assessment (Evaluación de Impacto Ambiental) process, including revised timelines for review and resolution.
• Proposed timelines include 60 business days for standard EIA resolution, 90 business days for regional modality and 120 business days for projects requiring public consultation.
• New requirements include mandatory climate change impact analysis, biodiversity impact assessment and a social impact component for projects affecting indigenous or local communities.
• The shift from calendar days to business days effectively extends review periods by approximately 40 percent, potentially adding weeks or months to project development timelines.

Environmental Insurance

• The reform would expand mandatory environmental insurance (seguro ambiental) requirements, potentially extending coverage obligations to a broader range of activities and increasing minimum coverage amounts.
• Companies currently operating under existing environmental insurance policies should evaluate whether expanded requirements would require additional coverage or policy modifications.
• The insurance provisions are designed to ensure financial capacity for environmental remediation, consistent with the "polluter pays" principle.

Transitional Regime and Implementation Timeline

• The bill includes a transitional regime providing for a phased implementation period.
• Existing environmental authorizations, permits and licenses would remain valid through their original terms, but renewal processes would be subject to the new law's requirements.
• Secondary regulations (reglamentos) and official Mexican standards (Normas Oficiales Mexicanas or NOMs) would need to be updated within specified deadlines following the law's enactment.
• Companies should monitor the transitional provisions closely, as the timeline for regulatory adaptation will directly affect compliance planning and operational continuity.

What Should Companies Do Now?

• Conduct a gap analysis comparing current environmental compliance programs against the proposed new requirements, with particular attention to penalty exposure, insurance obligations and permitting timelines.
• Review existing environmental authorizations and assess potential impacts of the transitional regime on updates or renewal processes and ongoing operations.
• Evaluate ESG disclosure and reporting implications, including potential listing on the Registry of Environmental Offenders.
• Engage with industry associations to participate in the legislative process during the congressional debate period to advocate for workable implementation frameworks.
• Develop a compliance road map and risk mitigation strategy tailored to your company's specific operations and risk profile in Mexico.

Holland & Knight's Environmental Team will continue monitoring developments related to this proposed reform and update clients accordingly. If you have any questions about the bill's potential impact on your operations or other environmental matters in Mexico, please contact our Environmental Team.

Information contained in this alert is for the general education and knowledge of our readers. It is not designed to be, and should not be used as, the sole source of information when analyzing and resolving a legal problem, and it should not be substituted for legal advice, which relies on a specific factual analysis. Moreover, the laws of each jurisdiction are different and are constantly changing. This information is not intended to create, and receipt of it does not constitute, an attorney-client relationship. If you have specific questions regarding a particular fact situation, we urge you to consult the authors of this publication, your Holland & Knight representative or other competent legal counsel.