Advance Auto Parts, Inc. is an automotive aftermarket parts provider in North America, serving both professional installers and do-it-yourself (DIY) customers. Its stores and branches offer a selection of brand names, original equipment manufacturers (OEM), and brand-owned automotive replacement parts, accessories, batteries and maintenance items for domestic and imported cars, vans, sport utility vehicles, and light and heavy-duty trucks. It operates approximately 4,770 stores and 316 branches within the United States, Canada, Puerto Rico, and the United States Virgin Islands. The Company operates through four trade names: Advance Auto Parts, Autopart International, Carquest, and Worldpac. Its Advance Auto Parts focus on both professional and DIY customers. The stores carry a variety of products serving aftermarket auto part needs for both domestic and import vehicles. Its Autopart International operates in the North-eastern and Mid-Atlantic regions of the United States.