Iowa Code requires districts, prior to certifying any levy by board approval or submitting a levy for voter approval, to facilitate public access to a complete listing of all outstanding levies within the district by rate, amount, duration, and maximum levy limitations. The Department of Management has prepared on its website the required levy information for districts, called Outstanding Property Tax Levies and Maximum Levy Limits.

http://www.dom.state.ia.us/local/schools/index.html