 The Clean Diamond Trade Act was revised several times before a version of the bill was successfully passed by Congress, and signed into law by the President of the United States.The very first version of the CDTA, H.R 2722, was introduced in the US House of Representatives by Rep.Amo Houghton, a Republican from New York on September 2, 2001 to the 107th Congress.There were 112 cosponsors