In a significant policy shift, the Trump administration has repealed the 'endangerment finding,' a key scientific determination from 2009 that classified greenhouse gases as a threat to human health and welfare. This repeal, announced on February 13, 2026, effectively dismantles the legal foundation for numerous US climate regulations, including federal greenhouse gas emission standards for vehicles. President Trump described the endangerment finding as a 'disastrous Obama-era policy' that 'severely damaged the American auto industry and massively drove up prices for American consumers' (The Frontier Post). The Environmental Protection Agency (EPA) argued that the finding relied on a flawed legal theory and was beyond the agency's statutory authority (The Frontier Post). This move has been labeled by the White House as the largest deregulation in US history, with President Trump claiming it will eliminate over $1.3 trillion in regulatory costs (AFP News Agency).