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Mining Regulatory Clarity Act

Passed first chamber: it can still change before the session ends.

US HR 1366 · House Bill · 119th Congress

Draft a letter
Stage
Passed first chamber
Started in
House
Sponsors
3
Latest action
Mar 17, 2026

What it does

Mining Regulatory Clarity Act This bill allows mining operators to use federal lands for activities ancillary to mining, such as waste disposal, regardless of whether those lands contain mineral deposits valuable enough to be mined (mineral validity). It also establishes the Abandoned Hardrock Mine Fund. The bill addresses a 2022 decision in the U.S. Court of Appeals for the Ninth Circuit related to the Rosemont Copper Mine in Arizona (commonly known as the Rosemont decision , described further in CRS Report R48166 ). The court held that mining claims are only allowed where mineral validity has been established and that mill site claims are more appropriate means for establishing a mining…

Official summary · Reported to House · Nov 25, 2025

Titles and provisions can change as the bill moves.

Read the full textRead it on the official site

Where it stands

  1. Introduced (Done)

    Feb 14, 2025

  2. Committee (Done)

  3. Floor (Current step)

    Passed first chamber · Mar 17, 2026

  4. Law (Not started)

What moved

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Who is involved

Sponsors

The lawmakers who put their names on it, lead sponsors first.

Where it goes next

While a bill can still move, the questions are about people and money.

Work with this bill

Mining Regulatory Clarity Act | 52