Why does this matter?
If you operate in the mining or energy sector in Argentina, the Glacier Law reform substantially relaxes restrictions on activities in glacial and periglacial zones. Provincial authorities now have the final say on what is protected and what activities are allowed.
Key facts
– Regulation: Law 27,804 (amends Law 26,639)
– Effective: May 3, 2026
What changed?
Selective protection: No longer are all glaciers and periglacial landforms automatically protected. Only those that provincial authorities determine serve as strategic water reserves for human consumption, agriculture, biodiversity, scientific research or tourism retain protection.
National Inventory no longer binding: The National Glacier Inventory is no longer binding, though it remains mandatory to consult. Provincial authorities may request that Argentine Institute of Glaciology (“IANIGLA”) add or remove glaciers from the inventory.
Previously prohibited activities now authorized: Activities in glacial and periglacial environments (including mining) may be carried out when the local authority determines they do not materially alter the natural condition or hydrological functions of the area.
Practical impact
Decision-making authority has been transferred to provincial governments. Companies interested in projects in previously restricted areas will need to obtain authorizations at the local level.
We remain at your disposal for further information.
Canosa Abogados
