Understanding both tracks, how they interact, and how to respond when one or both are triggered is essential for any company operating in Mexico's coastal zone.
Related issues may require complementary legal analysis, depending on the transaction and operating structure.
The criminal framework for environmental protection
Mexico's environmental criminal law has three main components that work together:
- Código Penal Federal Articles 418-423. The title on crimes against the environment in the CPF is the primary source of criminal environmental liability. These articles define specific environmental criminal offenses and their penalties.
- LGEEPA. The Ley General del Equilibrio Ecológico y la Protección al Ambiente provides the administrative framework that defines what activities require authorization and what conditions apply. A criminal prosecution under CPF Art. 418-423 often requires proving that the defendant acted without the authorization required by LGEEPA. The LGEEPA definitions and requirements are therefore embedded in the criminal case.
- LFRA—Ley Federal de Responsabilidad Ambiental. The LFRA, enacted in 2013, created a civil liability regime for environmental damage that runs parallel to both the administrative and criminal tracks. An LFRA action can result in a court order requiring the defendant to fully restore the damaged ecosystem at their own expense, plus economic damages.
Environmental crimes under Articles 418-423 of the Código Penal Federal
Article 418—Illegal vegetation removal and ecosystem damage
Article 418 addresses one of the most common categories of environmental criminal conduct in coastal Quintana Roo: unlawful removal of vegetation and damage to natural ecosystems. The article reaches anyone who, without authorization from SEMARNAT or in violation of the conditions of an authorization, destroys, clears, or harms forests or natural vegetation or alters the hydrological conditions of a catchment area.
In coastal development contexts, the most common facts that trigger an Article 418 investigation are clearing mangroves (prohibited absolutely under LGEEPA Art. 60 TER—no authorization can make it legal—clearing coastal vegetation classified as "selva" in connection with a "cambio de uso de suelo" that was not authorized, or removing vegetation within a buffer zone that was a condition of an MIA authorization.
Penalties under Art. 418: 5 to 12 years imprisonment and a fine of 100 to 20,000 times the daily minimum wage.
Article 420—Hunting and trafficking of protected species
Article 420 criminalizes hunting, capturing, collecting, or trafficking in protected wild species. The "protected" status is defined by reference to the Ley General de Vida Silvestre and the NOM-059-SEMARNAT-2010 list of species subject to special protection, threatened, or endangered.
In coastal Quintana Roo, Article 420 prosecutions have involved sea turtle poaching (all sea turtle species found in Mexican waters are listed as protected under NOM-059), illegal collection of coral for ornamental trade, capture of jaguars and other NOM-059 mammals, and trafficking in protected reptile species.
Penalties under Art. 420: 3 to 9 years imprisonment and fines. The penalty increases when the offense involves species listed as endangered or threatened under NOM-059.
Article 421—Illegal emissions causing serious environmental damage
Article 421 addresses emissions of pollutants—to the air, water, or soil—that cause serious harm to the environment, in a quantity that exceeds the limits set by applicable NOMs (Normas Oficiales Mexicanas) or without the required authorization.
This article reaches industrial facilities that discharge untreated or insufficiently treated wastewater, facilities with unauthorized atmospheric emissions above NOM limits, and operations that cause soil contamination through improper handling of hazardous materials.
Penalties under Art. 421: 1 to 9 years imprisonment and fines.
Article 422—Illegal dumping of hazardous waste
Article 422 criminalizes the discharge, dumping, or illegal handling of hazardous materials, hazardous waste, petroleum or its derivatives, or radioactive materials in marine, surface water, or groundwater bodies, or on soil, in concentrations that exceed applicable limits or without required authorization.
In the Yucatán Peninsula context, where the entire freshwater supply is the karst aquifer system with no natural impermeable barrier, illegal dumping of hazardous materials can rapidly affect the cenote network and coastal ecosystems. PROFEPA and prosecutors treat this seriously.
Penalties under Art. 422: 3 to 6 years imprisonment and fines.
Article 423—Illegal processing or importing of prohibited substances
Article 423 addresses the production, import, export, transport, storage, or use of substances that are prohibited or severely restricted by Mexican law or international treaty when done without the required authorization.
Penalties under Art. 423: 1 to 4 years imprisonment and fines.
Who can be criminally prosecuted
This is where the criminal track diverges most significantly from the administrative track—and where the stakes for company executives become personal.
Mexican law does not recognize corporate criminal liability for environmental crimes. A company (sociedad anónima or other business entity) cannot be prosecuted, convicted, or imprisoned for an environmental crime. Only natural persons—individuals—can be criminally prosecuted under Articles 418-423.
This means the criminal exposure falls on:
- Company directors (consejeros, directores generales). Executives who authorized or directed the activity that constituted the environmental crime.
- Environmental managers and technical staff. The individuals who held operational responsibility for the activities in question.
- Field supervisors and workers. The individuals who physically executed the act operated the equipment, performed the clearing, and supervised the dumping.
In practice, prosecutors and PROFEPA typically pursue criminal charges up the organizational chain, starting with the individuals who physically executed the act and working toward executives who had knowledge and authority. A company director who can demonstrate that they neither knew about nor authorized the specific conduct may have a stronger defense, but the evidentiary question of what they knew and what authority they delegated is the core of most environmental criminal investigations.
PROFEPA's dual role: administrative and criminal
PROFEPA is an administrative enforcement agency, not a criminal prosecutor. But PROFEPA plays a critical role in initiating criminal environmental cases because it has the investigative authority to conduct inspections, document conditions, and make formal referrals (denuncias) to the Fiscalía General de la República (the federal prosecutor's office) when inspection findings indicate criminal conduct.
The process typically runs: PROFEPA inspection identifies potential criminal violation—PROFEPA issues administrative sanctions (separately from the criminal referral)—PROFEPA makes a formal denunciation to the FGR—the FGR opens a criminal investigation. The FGR investigates and, if sufficient evidence exists, brings criminal charges.
Both the administrative and criminal tracks can proceed simultaneously against the same conduct. An executive may be paying administrative fines to SEMARNAT/PROFEPA while simultaneously defending against criminal charges in the federal court system. The administrative resolution does not preclude criminal prosecution, and vice versa.
How to respond to a PROFEPA inspection with criminal potential
When a PROFEPA inspection reveals conditions that the inspector classifies as potentially criminal—such as mangrove clearing, unauthorized dumping, or ecosystem damage—the response must be immediate and structured:
- Do not obstruct the inspection. Obstructing a PROFEPA inspection is itself a violation and provides no defense in subsequent proceedings. The inspection record will be made regardless.
- Designate a legal representative immediately. The company's authorized representative should be present throughout the inspection and should be accompanied by, or in immediate contact with, legal counsel.
- Document what the inspectors document. The acta de inspección is a legal document that will appear in any subsequent administrative or criminal proceeding. The company's representative has the right to note discrepancies or provide contextual information in the acta.
- Do not make admissions. Statements made during an inspection can be used in criminal proceedings. No representative should make statements about what happened, why it happened, or who decided it would happen without legal counsel's guidance.
- Engage environmental and criminal defense counsel immediately. The period between a PROFEPA inspection that identifies potential criminal conduct and a formal FGR investigation is often when the factual record is established. Early engagement of both environmental and criminal defense counsel gives the company and its executives the best opportunity to present their case to prosecutors before formal charges are filed.
The LFRA: environmental restoration liability
The Ley Federal de Responsabilidad Ambiental creates a separate legal action—civil in nature, distinct from criminal prosecution and administrative sanctions—that can be brought by PROFEPA, federal prosecutors, affected communities, or indigenous groups against any party that caused environmental damage.
An LFRA action can result in:
- A court order requiring the defendant to restore the damaged ecosystem to its baseline condition
- Compensation for damages, including the economic value of lost ecosystem services during the period of damage
- Court-supervised remediation programs
The LFRA action can proceed independently of criminal prosecution. A party acquitted of criminal charges can still face LFRA liability because the LFRA standard—causation and damage—is different from the criminal standard. And a party that was never criminally charged can still face LFRA liability if their operations caused documented environmental damage.
For coastal development projects in Quintana Roo, the LFRA's reach into ecosystem valuation—including the value of mangrove ecosystem services, reef habitat, and coastal water quality—creates environmental liability exposure that can be quantitatively very large.
Frequently asked questions about environmental crimes in Mexico
No. Payment of administrative fines resolves the administrative track of the enforcement action. It does not extinguish criminal liability. The Código Penal Federal creates independent criminal offenses for the same conduct that PROFEPA sanctions administratively. A company can pay PROFEPA fines, and its executives can simultaneously face criminal prosecution by the FGR. The two tracks are legally independent.
Yes. Criminal jurisdiction in Mexico for environmental crimes under the CPF attaches based on where the act was committed, not the nationality of the actor. A foreign director who authorized environmental criminal conduct at a Mexican project can be prosecuted in Mexico and, if convicted and subject to arrest in Mexico, imprisoned. Criminal proceedings can also be conducted in absentia in certain circumstances. For foreign investors with management authority over operations in Mexico, this personal exposure is real.
The statute of limitations (prescripción) for environmental crimes under the CPF depends on the maximum sentence for the specific offense. For crimes with a maximum sentence of more than 5 years (which includes most of Arts. 418-423), the prescription period is 12 years from the date of the criminal act or from the last criminal act if the conduct was continuous. For crimes with maximum sentences between 3 and 5 years, the prescription is typically 6 years. These periods can be extended if the accused is outside Mexico.
The LFRA provides for voluntary remediation agreements between responsible parties and PROFEPA, under which the party commits to a remediation plan, timeline, and verification process. These agreements resolve the LFRA civil liability track. They do not automatically protect against criminal prosecution, but they are evidence of remedial intent and action that can influence prosecutorial discretion—prosecutors may weigh a voluntary remediation commitment in deciding whether to pursue criminal charges. The agreement itself should be structured with criminal defense considerations in mind.
Defenses in Article 418 cases typically focus on: authorization (the defendant possessed a valid SEMARNAT authorization that covered the specific activity), scope (the activity was within the scope of an existing authorization), knowledge (the defendant did not know the activity required authorization or that it was occurring without one), and causation (the activity did not cause the degree of damage alleged). Technical expert evidence from biologists, ecologists, and environmental scientists is usually central to the defense. Legal arguments about the validity and scope of authorizations can also be dispositive.