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On September 27, 2017, the Mexican Senate passed a bill that amended Mexico’s main environmental law, the General Ecological Balance and Environmental Protection Law, first enacted in 1988 (the “General Law”), as well as other related provisions.

One of the most relevant amendments deals with fines for environmental violations. These will increase substantially if the bill passes. Currently, the maximum fine that may be imposed is equivalent to 50,000 times an UMA (measurement and updating unit), which amounts to $4,050,000.00 pesos Mex Cy (around $225,000.00 dollars). The new maximum fine amount will be 7.5 million times an UMA, which will be roughly equal to $566,175,000.00 pesos (approximately $31 million dollars).

The bill also introduces new rules for conducting regulatory inspections, simplifying and consolidating in one single inspection the procedures contained in several environmental laws dealing with wastes, forest development, national assets, biosafety, wildlife and climate change, as well as guidelines for administrative procedures which will become more in tune with the Federal Environmental Liability Law. New criteria on how companies may be liable for environmental harm will also be introduced.

This bill will be sent to the House of Deputies (the Lower Chamber of Congress) for review. It is very likely that it will be approved prior to the end of 2017, becoming law 180 days after publication in the Official Gazette.

Because of the substantial increases in fines for environmental violations and the introduction of new penalties and remediation obligations that will result from failing to meet permitting and compliance obligations, now more than ever it will be important for industrial sites to conduct a thorough review of their environmental performance, prior to facing regulatory inspections.

How can we help?

Our environmental practice group has the legal expertise to identify legal risks and to propose and implement strategies to correct them. We are considered one of the premier environmental practices in Mexico by Chambers & Partners and by the Legal 500 and have the ability and resources to assist your company in avoiding environmental liability. We regularly conduct risk assessments that provide useful compliance mechanisms and tools. We are ready to help you navigate through the sometimes complex framework of environmental compliance obligations.

We will let you know once the amendments to the General Law become effective.


Federico Ruanova-Guinea has been practicing law since 1988, and is currently the coordinator of the Firm’s environmental and natural resources practice group in Mexico. He practices mainly in the areas of environment and climate change law, with emphasis on environmental impact and risk, as well as the prevention, risks and control of air, water and soil pollution. His practice also covers hazardous substance management, occupational health and safety issues, as well as carbon trading and administrative litigation. Mr. Ruanova-Guinea is a member of the National Association of Corporate Attorneys of Mexico.


Mario Facio is a member of the Firm’s Environmental Practice Group in Mexico City. He has participated in multiple corporate and real estate projects, often advising on the regulatory component of such transactions. Mr. Facio was an active participant in the Fourth Annual International Arbitration Moot “Willem C. Bis,” which was held at the Juridicum of the Pace University in Vienna. He is a member of the Environmental Law Committee of the Mexican Company Lawyers Association.