The best evidence for Illinois legislative history is the House and Senate floor debates. All debates back to 1971 are now available online at www.ilga.gov. (Debates were not transcribed prior to 1971.) However, not all of the finding tools may be available online for all dates. This guide walks you through how to find the text of House and Senate floor debates online and in print and microfiche formats.
The Legislative Synopsis & Digest (LSD) will tell you everything that has happened to the bill, what amendments were proposed and what those amendments said. Use the LSD to determine the dates of relevant debates (see the tab at the side of the page, Readings relevant to legislative history).
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