This bill establishes a refundable sales tax exemption for construction materials used in the renovation of the Minneapolis-St. Paul International Airport. Specifically, it exempts materials, supplies, and equipment purchased by contractors or subcontractors for public infrastructure projects at the airport from sales and use tax, provided these purchases occur between July 1, 2023, and January 1, 2028. Refunds for the sales tax will not be available until after July 1, 2025, and the tax will be collected as if the standard rate applied, with refunds processed in accordance with existing statutes.

Additionally, the bill includes an appropriation from the general fund to the commissioner of revenue to cover the costs of these refunds. The effective date of this exemption is retroactive for sales and purchases made within the specified timeframe. This legislative measure aims to support the renovation efforts at the airport by alleviating some of the financial burdens associated with sales tax on construction materials.