Joint Committee Print. JCS-1-00. This document, prepared by the staff of the Joint Committee on Taxation in consultation with the staffs of the House Committee on Ways and Means and the Senate Committee on Finance, provides an explanation of tax legislation enacted in the 109th Congress. This document, prepared by the staff of the Joint Committee on Taxation in consultation with the staffs of the House Committee on Ways and Means and the Senate Committee on Finance, provides an explanation of tax legislation enacted in the 109th Congress. The explanation follows the chronological order of the tax legislation as signed into law. For each provision, the document includes a description of present law, explanation of the provision, and effective date. Present law describes the law in effect immediately prior to enactment. It does not reflect changes to the law made by the provision or subsequent to the enactment of the provision. For many provisions, the reasons for change are also included. In some instances, provisions included in legislation enacted in the 109th Congress were not reported out of committee before enactment. For example, in some cases, the provisions enacted were included in bills that went directly to the House and Senate floors. As a result, the legislative history of such provisions does not include the reasons for change normally included in a committee report. In the case of such provisions, no reasons for change are included with the explanation of the provision in this document. In some cases, there is no legislative history for enacted provisions. For such provisions, this document includes a description of present law, explanation of the provision, and effective date, as prepared by the staff of the Joint Committee on Taxation. In some cases, contemporaneous technical explanations of certain bills were prepared and published by the staff of the Joint Committee. In those cases, this document follows the technical explanations. Section references are to the Internal Revenue Code unless otherwise indicated.