Mexico has the federal department INAH (National Institute of Anthropology and History), which preserves and cares for ancient artifacts and historical sites from the Maya, Aztec, Izapa, Teotihuacan, and more. They operate over 100 museums and handle over 139,000 archeological sites, with 150 open to the public. I think Mexico would be able to handle any artifacts found in Mexico.
Mexico has the federal department INAH (National Institute of Anthropology and History), which preserves and cares for ancient artifacts and historical sites from the Maya, Aztec, Izapa, Teotihuacan, and more. They operate over 100 museums and handle over 139,000 archeological sites, with 150 open to the public. I think Mexico would be able to handle any artifacts found in Mexico.