The Legislative Reference Bureau compiles this list from the enrolled bills and joint resolutions passed by the Wisconsin Legislature. The Legislative Reference Bureau makes a reasonable effort to provide a complete and accurate listing, but assumes no responsibility or liability for errors or omissions.

The first table is intended to record whole-numbered statute sections affected by 2009 Wisconsin Acts in regular and special sessions. Some whole-numbered statute sections, though last printed in the statutes of 1919, continue in force today.

The second table shows, in the ascending order of the decimal-numbered statute sections affected by 2009 Wisconsin Acts, the changes enacted by the 2009 legislature in its regular and special sessions. In addition, this table contains references to decimal-numbered statute sections affected in prior legislative sessions which have delayed effective dates beginning after January 1, 2009, and decimal-numbered statute sections affected by Supreme Court Orders effective beginning after January 1, 2009.

Changes in nonstatutory session laws resulting from 2009 enactments are shown separately following the table of statute section numbers. A final table shows the constitutional amendments approved by the 2009 legislature on first consideration for review by the 2011 legislature, constitutional amendments approved by the 2009 legislature on second consideration for submission to the electorate, and statewide referendum questions for submission beginning with the 2009 spring election.