Environmental enforcement in Mexico operates on two parallel tracks. The administrative track\u2014PROFEPA inspections, fines, clausuras, and remediation orders\u2014is the one most developers and operators encounter first. The criminal track is less familiar to foreign investors but no less real. Articles 418 through 423 of the C\u00f3digo Penal Federal establish criminal liability for environmental offenses with prison sentences of up to nine years. And unlike the administrative track, the criminal track reaches individuals personally\u2014company directors, project managers, and site supervisors can face prosecution for environmental crimes that were committed in the company’s name.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
Related issues may require complementary legal analysis, depending on the transaction and operating structure.<\/p>\n\n\n\n
Mexico’s environmental criminal law has three main components that work together:<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
In coastal development contexts, the most common facts that trigger an Article 418 investigation are clearing mangroves (prohibited absolutely under LGEEPA Art. 60 TER\u2014no authorization can make it legal\u2014clearing 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.<\/p>\n\n\n\n
Penalties under Art. 418: 5 to 12 years imprisonment and a fine of 100 to 20,000 times the daily minimum wage.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
Article 421 addresses emissions of pollutants\u2014to the air, water, or soil\u2014that 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.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
Penalties under Art. 421: 1 to 9 years imprisonment and fines.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
In the Yucat\u00e1n 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.<\/p>\n\n\n\n
Penalties under Art. 422: 3 to 6 years imprisonment and fines.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
Penalties under Art. 423: 1 to 4 years imprisonment and fines.<\/p>\n\n\n\n
This is where the criminal track diverges most significantly from the administrative track\u2014and where the stakes for company executives become personal.<\/p>\n\n\n\n
Mexican law does not recognize corporate criminal liability for environmental crimes. A company (sociedad an\u00f3nima or other business entity) cannot be prosecuted, convicted, or imprisoned for an environmental crime. Only natural persons\u2014individuals\u2014can be criminally prosecuted under Articles 418-423.<\/p>\n\n\n\n
This means the criminal exposure falls on:<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
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 Fiscal\u00eda General de la Rep\u00fablica (the federal prosecutor’s office) when inspection findings indicate criminal conduct.<\/p>\n\n\n\n
The process typically runs: PROFEPA inspection identifies potential criminal violation\u2014PROFEPA issues administrative sanctions (separately from the criminal referral)\u2014PROFEPA makes a formal denunciation to the FGR\u2014the FGR opens a criminal investigation. The FGR investigates and, if sufficient evidence exists, brings criminal charges.<\/p>\n\n\n\n
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.<\/p>\n\n\n\n
When a PROFEPA inspection reveals conditions that the inspector classifies as potentially criminal\u2014such as mangrove clearing, unauthorized dumping, or ecosystem damage\u2014the response must be immediate and structured:<\/p>\n\n\n\n
The Ley Federal de Responsabilidad Ambiental creates a separate legal action\u2014civil in nature, distinct from criminal prosecution and administrative sanctions\u2014that can be brought by PROFEPA, federal prosecutors, affected communities, or indigenous groups against any party that caused environmental damage.<\/p>\n\n\n\n
An LFRA action can result in:<\/p>\n\n\n\n
The LFRA action can proceed independently of criminal prosecution. A party acquitted of criminal charges can still face LFRA liability because the LFRA standard\u2014causation and damage\u2014is 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.<\/p>\n\n\n\n
For coastal development projects in Quintana Roo, the LFRA’s reach into ecosystem valuation\u2014including the value of mangrove ecosystem services, reef habitat, and coastal water quality\u2014creates environmental liability exposure that can be quantitatively very large.<\/p>\n\n\n\n