DES MOINES, Iowa (AP) — Plans to require radon testing in schools statewide have been sidelined but supporters of the idea are emboldened that a bill remains alive this legislative session. Republican lawmakers and school officials worry positive tests would open districts and the state up to serious liability and expensive repairs. They supported a bill that surveys schools to see how many have tested for the natural occurring gas that seeps out of soil into buildings.

Supporters of the Democratic-led legislation say delaying testing when radon is considered a serious risk in Iowa by the Environmental Protection Agency is irresponsible. Republican leaders counter that it makes more sense to assess the problem then deal with how to pay for fixing buildings to keep if it’s needed.