All litigation funding arrangements in Wisconsin state courts will have to be disclosed in civil cases under a new measure signed into law by the state's governor Tuesday.

Wisconsin Act 235 appears to be the first law of its kind in the United States, and comes amid a continued push by litigation finance opponents to increase transparency in the industry.

The relevant provision requires that a party—even absent a discovery request—provide to other parties “any agreement under which any person … has a right to receive compensation that is contingent on and sourced from any proceeds of the civil action, by settlement, judgment or otherwise.” It does not apply to lawyer contingency fee arrangements.