The State of NC in their infinite wisdom has decided to start effective March 1, 2016:
"The imposition of sales and use tax to the sales price of or the gross receipts derived from
“repair, maintenance, and installation services” for a motor vehicle or tangible personal property."
In other words, taxing LABOR as well as parts. This will now also include service contract labor/parts which were previously exempt as the contract was taxed at sale.
Does your state do this as well?