Congress opens federal lands to hardrock mining under streamlined leasing rules
H.R. 3872 — MERICA Act of 2025 · Filed by Pat Fallon (R-TX) · 2 cosponsors · Introduced Jun 10, 2025 · Passed chamber
Your members of Congress
Enter a ZIP to see where your representative and both senators stood on this bill.
Looked up on this device — your ZIP is never stored on our servers.
What it does
This bill expands the Mineral Leasing Act for Acquired Lands—a law governing how the federal government leases mineral rights on public lands it has purchased—to include hardrock minerals (gold, copper, silver, rare earths, gemstones, and similar deposits). Previously, the Act applied only to oil, gas, coal, and a few other commodities. The change means the federal government can now lease hardrock mineral rights on acquired public lands under the same regulatory framework, potentially opening new areas to mining operations.
Why we flagged it
The bill's sole operative function is to extend federal mineral-leasing authority to hardrock deposits on acquired public lands. It is a straightforward regulatory expansion, not a tax measure, appropriation, or commemorative act.
What the text implies
- Hardrock mining on acquired federal lands will now be governed by the Mineral Leasing Act for Acquired Lands framework rather than separate hardrock-specific permitting statutes (e.g., the General Mining Law of 1872 or other hardrock-specific regimes), potentially streamlining approval but reducing environmental-review rigor if the leasing framework is less stringent.
- The definition of 'hardrock mineral' explicitly excludes coal, oil, gas, sodium, potassium, sulfur, and materials under the Materials Act of 1947, preserving existing regulatory silos for those commodities but creating a new unified category for precious metals, base metals, industrial minerals, and gemstones.
The full analysis lists 4 implications of this text.
Who stands to gain
hardrock mining companies; precious metals mining operators; base metals mining operators