Back to the resource library Fact Sheet: H.R. 2141, the Mineral Exploration and Development Act of 2003 March 24, 2003 Download EARTHWORKS’ analysis of the Rahall-Shays-Inslee bill to reform the 1872 Mining Law. See All Related Resources CERTIFIED GASLIGHTING: Fact Sheet CERTIFIED GASLIGHTING: How gas certification has gained a policy foothold, even as it fails to prove it can accurately detect emissions Earthworks 2024 Campaign Plan Remining for the Energy Transition