H.R. 7811, the Responsible Containment Reauthorization Act, extends the operating authorization of a uranium mill tailings disposal site in Mesa County, Colorado, indefinitely rather than limiting it to a fixed deadline. The bill removes a September 30, 2031 expiration date from current law, allowing the facility to continue operating until it reaches its designed storage capacity. This change affects the site's operators and any communities nearby that depend on or are impacted by the facility's continued operation. The legislation does not specify new funding or establish a specific timeline for closure, instead tying the site's authorization directly to when it fills to capacity. The bill was introduced in March 2026 by Representative Hurd of Colorado and referred to the House Committee on Energy and Commerce.
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