After 12 years, a request could be made for the declassification process to start for the full report's release. In June 2017, Senator Richard Burr, then chair of the Senate Intelligence Committee, ordered that Executive Branch agencies return their copies of the report to the committee. The copies preserved for the Guantanamo Bay cases and for Obama's presidential archive would not be returned. Following the release of the Executive Summary, on November 25, 2015, President Barack Obama signed into law the 2016 National Defense Authorization Act, which included an amendment sponsored by Senators John McCain and Dianne Feinstein to codify into law the ban enhanced interrogation techniques laid out in President Obama's Executive Order 13491. The amendment restricts national security interrogation to techniques in the "Army Field Manual", which the amendment mandated would be reviewed to eliminate any potential abuses the manual allowed. The Senate passed the amendment with a bipartisan vote of 78 to 21.