Rio Tinto owns 55% of the mining project with the remaining 45% being owned by BHP.
The Bill now awaits the President Barack Obama’s approval, reports Reuters.
Once operational, the Resolution copper mine will have the capacity to produce over 1 billion pounds of copper per year, which in turn will turn it to be the largest copper producer in North America.
Resolution Copper Mining project director Andrew Taplin said: "Resolution Copper Mining is pleased that the Southeast Arizona Land Exchange and Conservation Act passed the House of Representatives and the Senate with strong bipartisan support.
"Passage of the legislation means that Resolution Copper can move forward with the development of this world-class ore body which will create approximately 3,700 jobs, generate over $60 billion in economic impact and result almost $20 billion in state and federal tax payments.
"There is much more work to be done before commercial mining can begin and Resolution Copper looks forward to working with all stakeholders as we continue to progress through the regulatory review process toward responsible development and operation of a world-class copper mine that will safely produce over 25 percent of the current annual demand for copper in the United States."
