US Federal 2025-2026 Regular Session

US Federal House Bill H.R. 4090

Introduced
 
Introduced
6/23/25  
Refer
6/23/25  
Refer
7/2/25  
Report Pass
9/17/25  

Caption

Critical Mineral Dominance Act

Summary

HB4090, the Critical Mineral Dominance Act, is a federal mining policy bill aimed at accelerating domestic production of hardrock minerals, including rare earth elements and other critical minerals. It states a national policy of making the United States the leading producer of these minerals in order to create jobs, strengthen supply chains, support allies, safeguard national security, and reduce the influence of adversarial countries. The bill directs the Secretary of the Interior, working with the Secretary of Agriculture and the U.S. Geological Survey, to produce new analyses and reports on mineral import reliance, identify mining projects on federal land, and prioritize projects that can be approved quickly. It also requires identification of federal lands with mining potential, review of barriers to byproduct recovery from mine tailings and coal ash, and accelerated geologic mapping to locate previously unknown mineral deposits. In addition, it calls for a regulatory review of federal actions that may burden mining development and a report on state and local laws that impede domestic mining and mineral exploration.

Impact

The bill would affect federal land management, mineral permitting, geological surveying, and regulatory review by directing Interior and Agriculture to expedite hardrock mining projects and identify lands suitable for exploration, development, or production. It would also require the U.S. Geological Survey to incorporate import-reliance and economic-impact data into future Mineral Commodity Summaries, and it would push the Department of the Interior to recommend changes to existing law and identify state and local barriers to mining. The measure does not directly amend state statutes, but it could influence state and local policy by spotlighting regulations viewed as obstacles to domestic mineral production.

Sentiment

The House vote indicates generally favorable support for the bill, as it passed 223-194 after a failed motion to recommit. The bill’s framing around national security, supply-chain resilience, and domestic job creation suggests strong backing from supporters of expanded mining and critical mineral development. The absence of committee transcript material limits insight into detailed debate, but the recorded vote shows the measure was partisan and contested rather than broadly bipartisan.

Contention

The main points of contention are likely the bill’s directive to expedite approvals for mining projects and its requirement to identify and potentially suspend or revise federal actions deemed burdensome. Critics would be expected to focus on environmental review, public lands protections, and the speed of permitting, while supporters emphasize domestic supply chains, reduced import dependence, and national security. The bill’s instruction to review state and local laws that impede mining may also raise federalism concerns among opponents who view it as pressure on subnational regulation.

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