119-s-4005119th Congress

Responsible Containment Reauthorization Act of 2026

Sponsored By: Senator Hickenlooper, John W. [D-CO]

Introduced

Summary

Keeps the Mesa County, Colorado uranium mill tailings disposal site authorized until it is filled to its designed capacity. This bill would amend the Uranium Mill Tailings Radiation Control Act of 1978 by removing the phrase in Section 112(a)(1)(B) that set a September 30, 2031 deadline, replacing the time-based expiration with an authorization that continues until the site reaches its planned capacity.

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 0 benefits, 0 costs, 1 mixed.

Extend Mesa County disposal authorization

If enacted, this bill would remove the phrase ", or September 30, 2031, whichever comes first" from the law that authorizes the Mesa County, Colorado uranium tailings disposal site. The authorization would therefore continue until the site is filled to its designed capacity instead of automatically ending on September 30, 2031. The bill would not add new funding or change who is eligible or how the site is enforced. Site operators and contractors would keep authorization to operate, and nearby residents would see continued operations and related local environmental effects.

Sponsors & CoSponsors

Sponsor

Hickenlooper, John W. [D-CO]

CO • D

Cosponsors

  • Sen. Curtis, John R. [R-UT]

    UT • R

    Sponsored 3/5/2026

  • Sen. Bennet, Michael F. [D-CO]

    CO • D

    Sponsored 3/5/2026

Roll Call Votes

No roll call votes available for this bill.

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