The United States (U.S.) Environmental Protection Agency (EPA) Toxics Release Inventory (TRI) program collects information on disposal or other releases (and other waste management activities) for over 650 chemicals from industrial sources in all 50 states and the U.S. territories. The information has been collected annually since 1988. For 2008, the latest year for which data are available, disposal or other releases of TRI chemicals totaled almost 3.9 billion pounds from almost 21,700 U.S. facilities submitting approximately 83,600 chemical forms. The time period covered for this year's data release is January 1 to December 31, 2008. These 2008 data were reported to EPA by July 1, 2008. They were released to the public on a form-by-form basis in September 2009, and were released to the public in a consolidated format with summary analysis in December 2009. Data for previous years back to 1988 are also available. There were two reporting change for the 2008 data. Beginning with Reporting Year 2008, facilities that file reports for the dioxin and dioxin-like compounds category may also need to file a Form R Schedule 1. The Form R Schedule 1 is a four-page form which includes chemical-specific information for each type of disposal or other release as well as the waste managed data (Form R, Sections 5, 6, and 8 (current year only)). The Form R Schedule 1 requires the reporting of the individual grams data for each member of the dioxin and dioxin-like compounds category and is submitted as an adjunct to the Form R. Facilities that have any of the information required by Form R Schedule 1 must submit a Form R Schedule 1 in addition to the Form R. Using the reported grams data, Toxic Equivalency (TEQ) total values can be calculated for each of the reported media. TEQ total values are calculated by multiplying the grams data for each reported member of the media type by its Toxic Equivalency Factor (TEF) value and then summing the results. The second reporting change occurred when the 2009 Omnibus Appropriations Act returned TRI reporting requirements back to the rules in effect prior to December 22, 2006. The change requires that all reports on persistent, bioaccumulative, and toxic (PBT) chemicals be submitted on the Form R, the more detailed form. For all other chemicals the shorter form, Form A, may be used only if the 'annual reporting amount' is 500 pounds or less and that the chemical was manufactured, processed or otherwise used in an amount not exceeding 1 million pounds during the reporting year.