Maintenance by Department and use of list denoting tax rates and taxing jurisdictions for each zip code in State

1. The Department shall maintain a list that denotes for each five-digit and nine-digit zip code in this State the combined rates of sales taxes and the combined rates of use taxes imposed in the area of that zip code, and the applicable taxing jurisdictions, including, without limitation, any pertinent Indian reservation or Indian colony. If the combined rate of all the sales taxes or use taxes respectively imposed within the area of a zip code is not the same for the entire area of the zip code, the Department shall denote in the list the lowest combined tax rates for the entire zip code. 2. If a street address does not have a nine-digit zip code or if a registered seller or certified service provider is unable to determine the nine-digit zip code applicable to a purchase after exercising due diligence to determine that information, that seller or certified service provider may, except as otherwise provided in subsection 3, apply the rate denoted for the five-digit zip code in the list maintained pursuant to this section. For the purposes of this subsection, there is a rebuttable presumption that a registered seller or certified service provider has exercised due diligence if the seller or certified service provider has attempted to determine the nine-digit zip code applicable to a purchase by using software approved by the Department which makes that determination from the street address and five-digit zip code applicable to the purchase. 3. The list maintained pursuant to this section does not apply to and must not be used for any transaction regarding which a purchased product is received by the purchaser at the business location of the seller.