A bill for an act relating to the distribution of water exempt from taxation and the use of tax exemption certificates, and providing civil penalties.

HF 329 requires water utilities in Iowa to accept and retain valid exemption certificates that exempt certain water use from taxation, rather than forcing customers to seek refunds from the state. It directly affects water utilities and customers who qualify for tax exemptions on their water use. The key provision imposes civil penalties on utilities that refuse valid certificates - equal to the tax amount plus interest - which must be paid to the state general fund. The bill defines "exemption certificate" and "water utility" and mandates the Department of Revenue to adopt implementing rules. This law streamlines tax exemption access and ensures utilities comply with existing tax exemption rules.