Legislation and regulation
Paula Otero
Environmental and Sustainability Consultant

The environmental and sustainability rules that affect a company in Argentina fall into six layers: national minimum standards, the provincial and municipal layer that makes them enforceable day to day, the climate layer, the capital markets layer, the labour and social layer, and the layer arriving from abroad through customers and export markets. The key to not getting lost: almost no Argentine obligation asks you to measure emissions or publish a sustainability report, but almost all of them ask for traceable environmental data.
Article 41 of Argentina's Constitution divides the work: the federal government issues rules containing minimum protection standards and the provinces supplement them, without the federal rules overriding local jurisdiction. Municipalities add operating permits and local charges.
That is why two identical plants of the same company, one in Córdoba and one in Buenos Aires, face different files, different forms and different deadlines for the same thing. There is no single environmental window in Argentina, and planning compliance as if there were is the first mistake.
The umbrella rule is the General Environment Law 25,675, from 2002. It sets the ten environmental policy principles of article 4, the management instruments of article 8, environmental impact assessment in articles 11 to 13, mandatory environmental insurance in article 22 and the collective environmental damage regime in articles 27 to 33.
The others sit on top of it:
| Law | Subject |
|---|---|
| Law 24,051 | Hazardous waste |
| Law 25,612 | Integrated management of industrial and service activity waste |
| Law 25,688 | Water environmental management regime |
| Law 25,916 | Household waste management |
| Law 26,331 | Environmental protection of native forests |
| Law 27,279 | Empty pesticide containers |
| Law 27,520 | Climate change adaptation and mitigation |
| Law 27,566 | Approval of the Escazú Agreement |
These are the obligations that show up in a compliance audit in Argentina.
This generates the most paperwork. Any natural or legal person responsible for generating, transporting, treating or finally disposing of hazardous waste must register in the National Registry of Hazardous Waste Generators and Operators (article 4). The registry issues an Environmental Certificate attesting approval of the handling system which, under article 5, is renewed annually.
Every waste movement is documented with the manifest of articles 12 and 13, now processed electronically through the national environmental authority's electronic manifest system. And article 22 is blunt: the generator is liable, as owner of the waste, for any damage it causes. The law also contains a criminal regime in articles 55 to 57.
One nuance that causes confusion: Law 25,612 on industrial waste is later and is also a minimum standards law, but in practice hazardous waste management is still processed under the Law 24,051 regime and its implementing rules. Always confirm with your jurisdiction which one applies to your specific waste stream.
Article 22 of Law 25,675 requires anyone carrying out activities that are risky for the environment to hold insurance with sufficient coverage to fund remediation. Who is covered is decided by calculating the Environmental Complexity Level under Resolution SAyDS 177/2007 and its amendments: listed activities in the second and third categories are in. The amount comes from the methodology of Resolution SAyDS 1398/2008. The regulation in force is Decree 447/2019, which repealed the earlier Decree 1638/2012.
The heaviest example by industrial volume is the province of Buenos Aires. Law 11,459 requires every industrial establishment to hold an Environmental Fitness Certificate, classifies establishments into three categories by risk (harmless, disruptive and hazardous) and sets a certificate validity of two years. Third category establishments are handled by the provincial authority, first and second by the municipality.
Every province has its equivalent, with its own name and its own procedure. The City of Buenos Aires, Santa Fe, Córdoba and Mendoza run systems that differ from one another.
Law 25,675 sets the floor, but the list of covered projects, the procedure and the public hearing are defined by each province. For a new project or a significant expansion, this is the first question to settle, not the last.
Law 27,520 on minimum standards for climate change adaptation and mitigation, published in December 2019 and implemented by Decree 1030/2020, creates the National Climate Change Cabinet, the National Adaptation and Mitigation Plan and the National Climate Change Information System.
What matters to a sustainability function is what it does not do: it creates no facility-level emissions registry and no reporting threshold. Argentina has no equivalent to Mexico's RENE. The National Greenhouse Gas Inventory is built from aggregate sectoral statistics, not from company filings.
Two pieces do have direct effects: the National Strategy for the Use of Carbon Markets, within the 2022-2030 National Plan approved by Resolution 146/2023, and the National Registry of Mitigation Projects (ReNaMi) under Resolution 363/2021, through which projects generating carbon credits must pass. International transfers under Article 6 of the Paris Agreement require national government authorisation.
This is the only Argentine requirement that resembles mandatory sustainability reporting. General Resolution 1115/2026 of the Comisión Nacional de Valores, published on 2 March 2026, reorganises the periodic disclosure regime and requires issuers to disclose in the annual report their environmental or sustainability policy and their main performance indicators, or explain why they do not consider them relevant. It is a comply or explain mechanism, and issuers classified as CNV SMEs fall outside it.
Added to that are the Corporate Governance Code of General Resolution 797/2019, the Guidelines for the issuance of thematic securities governing green bonds, social and sustainable bonds, and FACPCE Technical Resolution 60, which replaces the Social Balance Sheet of TR 36 and accepts GRI and the IFRS Sustainability Disclosure Standards. The detail is in our entry on ESG reporting to the CNV.
Article 25 of Labour Regulation Law 25,877 requires companies employing more than 300 workers to prepare an annual social balance sheet and hand it to the union with legal representation status within 30 days of preparing it, filing a copy with the labour authority. Its minimum content, in article 26, includes headcount, turnover, pay evolution, training, outsourcing and accident statistics.
Watch the name: this social balance sheet is a labour document, not an environmental one, and it does not replace a sustainability report. But much of the social information a standard like GRI will ask you for is already being collected to comply with this law.
For an exporter or a supplier to a European group, this layer often weighs more than all the local rules combined.
If the map is already clear, the next step is our guide to preparing a sustainability report in Argentina.
There is no national legal obligation for private companies to measure or report emissions. A carbon footprint is calculated because customers, parent companies, banks or export markets require it, or to answer the CNV requirement to disclose performance indicators if you are a listed issuer.
Those carrying out activities that are risky for the environment under article 22 of Law 25,675. The determination is made through the Environmental Complexity Level of Resolution SAyDS 177/2007: listed activities in the second and third categories are covered.
It is the certificate issued by the National Registry of Hazardous Waste Generators and Operators attesting approval of the hazardous waste handling system. Article 5 of Law 24,051 provides that it is renewed annually.
Directly, only if the group has EU presence above the thresholds of Directive (EU) 2026/470. Indirectly it does, as a supplier to a European customer in scope, though limited by the voluntary VSME-based standard.
It is a labour obligation for companies with more than 300 workers, delivered to the union with legal representation status and filed with the labour authority. Coordinate it with your employee relations team: it is not an environmental matter, but it belongs to the same transparency package.
Bringing consumption, waste and emissions from all your Argentine sites into one place, traceable back to the invoice, is what makes all of the above manageable. Start with our carbon footprint solution.
Paula Otero
Environmental and Sustainability Consultant
About the author
Biologist from the University of Santiago de Compostela with a Master’s degree in Natural Environment Management and Conservation from the University of Cádiz. After collaborating in university studies and working as an environmental consultant, I now apply my expertise at Manglai. I specialize in leading sustainability projects focused on the Sustainable Development Goals for companies. I advise clients on carbon footprint measurement and reduction, contribute to the development of our platform, and conduct internal training. My experience combines scientific rigor with practical applicability in the business sector.
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