\nThe Secretary may establish a performance standard for a seller that is engaged in business in this State and at least 10 other states and has developed a proprietary system to determine the amount of sales and use taxes due on transactions. A seller that enters into an agreement with the Secretary that establishes a performance standard for that system is liable for the failure of the system to meet the performance standard. (2001-347, s. 1.3; 2005-276, s. 33.31.)
North Carolina Legal Code