On 11 March 2009, President Barack Obama signed into law a restoration of the Toxics Release Inventory (TRI), reversing changes made under the previous United States administration under its "Burden Reduction" initiative. The measure was included within the Omnibus Appropriations Act of 2009 and restored the rules that existed before the U.S. Environmental Protection Agency (EPA) changed them in December 2006. The change lowers the thresholds for reporting releases of more than 650 toxic chemicals and requires that releases of persistent bioaccumulative toxins (PBTs) always be reported in detail. The EPA is now implementing the new thresholds for reports being submitted for calendar year 2008 and will soon issue a rule revising the regulatory text to reflect the changes. With links to the 2007 TRI pollutant release and transfer data.