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Environmental Authorization Is Only the Beginning of Compliance

By Blanca del Carmen Martínez Mendoza - Mendoza Vera Abogados
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Blanca del Carmen Martinez Mendoza By Blanca del Carmen Martinez Mendoza | Partner - Fri, 10/02/2026 - 05:00

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An authorization allows a company to move forward with a project under specific conditions. The regulatory question is whether the project, as built and operated, continues to satisfy them.

Obtaining an environmental authorization is often treated as a milestone that closes a legal workstream. The company secures the resolution, construction begins, and responsibility shifts to the teams running the project. Yet, the authorization does not simply confirm that a project was acceptable on the day it was approved. It establishes the terms under which the project may proceed.

That distinction matters when a facility evolves. Equipment may be relocated, construction plans may change, or a contractor may perform work differently from what the company anticipated. The authorization may still be in force, but the relevant question becomes whether the actual project remains consistent with the authorized one.

Under Mexico’s General Law of Ecological Balance and Environmental Protection, an environmental impact authorization may approve a project as submitted or impose additional measures to prevent and mitigate adverse impacts. Where approval is conditional, the resolution must identify the requirements applicable to the project. Those requirements may concern activities before construction begins, as well as construction, operation and eventual abandonment. 

A legal team may know the contents of a resolution, but the people who can comply with it are often elsewhere: the project manager, the operations team, procurement personnel, and outside contractors. If a condition applies before a particular activity begins, it needs to be known before that activity is scheduled. If it governs operations, someone must be responsible for checking compliance throughout that stage.

This calls for more than circulating a copy of the authorization. Each applicable condition should be connected to an action, a responsible person, and the evidence that will show what was done. That is a management recommendation, rather than a claim that the law requires every company to use a particular tracking system.

Understanding Limits

The company must also understand the limits of the document it holds. The regulations require the project to comply with the environmental impact resolution, applicable Mexican official standards, and other relevant legal provisions. An environmental impact authorization addresses the environmental aspects of the works or activities evaluated. Its existence should not be taken as proof that every other approval required for the project has been obtained.

Businesses adapt their operations for sound commercial reasons. A company may seek to increase capacity, change equipment, or adjust the layout of a facility. The legal issue is whether the proposed change remains within the scope of the project and conditions already assessed by the authority.

That question cannot be answered in the abstract. It requires comparing the proposed change with the application, the technical documents, and the terms of the authorization, then determining what the applicable rules require. Reviewing it before the company commits capital or signs a construction contract allows the legal assessment to inform the business decision. Reviewing it for the first time after an inspection leaves fewer options.

A company may have carried out a required measure and still struggle to demonstrate when, where, and how it did so. A contract with a service provider, for example, establishes that services were commissioned. Depending on the condition at issue, additional records may be needed to establish what was performed at the facility and during the relevant period.

This is why the compliance file should follow the obligations in the authorization, rather than consist only of the authorization itself. Relevant evidence might include reports, measurements, records of completed work, submissions to the authority, or correspondence concerning a particular requirement. The appropriate evidence depends on the wording of the condition and the activity involved.

This distinction has consequences beyond an inspection. When a company evaluates an acquisition, expansion, or financing, it needs to understand whether a facility can continue operating under its existing authorizations and whether any obligations remain outstanding. A clear record helps identify issues while there is still time to address them.

Dealing With an Inspection

The competent authorities may inspect a facility to verify environmental compliance. Under the General Law of Ecological Balance and Environmental Protection, inspectors must have identification and a written order specifying the place and purpose of the visit. They must prepare a record describing the facts and omissions observed. The person attending the inspection may make observations and submit evidence at the time of the visit or exercise that right within the period established by law. 

The inspection record is an important document, but it is not the same as a final determination of liability. If the authority identifies a possible irregularity, subsequent steps may give the company an opportunity to respond and present evidence. Depending on the facts and the applicable provisions, the authority may also require corrective action or consider other measures. The company’s response should therefore begin with the actual order, the facts recorded during the visit, the authority’s subsequent acts, and the deadlines applicable to each one. 

For management, the question is straightforward: What if the authority asked tomorrow how a specific condition was fulfilled, who could explain it, and what records would support that explanation?

If the answer requires reconstructing months of activity from scattered messages or relying on the memory of a former contractor, the company has identified a risk it can address now. An authorization permits a project to proceed. Maintaining consistency between that authorization, the operation, and the evidence of compliance is what protects its value over time.

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