64:09:01:20Determination of age and value of tangible

personal property. For the purposes of the exemption in SDCL 10-46-3, tangible personal property or any product transferred electronically must be more than seven years old as determined by its date of manufacture, if documented, or by the date of the purchase by the person bringing the property into this state. In the absence of independent documentary proof of the value of the tangible personal property or any product transferred electronically at the time it is brought into South Dakota, the value of the property is presumed to be the purchase price reduced by ten percent for each year of use of the property by the person bringing the property into this state. Statements, opinions, or depreciation schedules of the owner of the property are not independent documentary proof of the value of the property.

Source: 18 SDR 3, effective July 14, 1991; 21 SDR 219, effective July 1, 1995; 35 SDR 48, effective September 8, 2008.