"Deciphering the World of Car Sales: What is NACS? In the complex world of car buying, understanding industry terminology is crucial for making informed decisions. NACS, short for National Automotive Dealers Association's Certified Service (formerly known as the National Automobile Dealers Association), is a term that has left many car enthusiasts scratching their heads. But what does it really mean? In a recent guide, Kelley Blue Book delves into the ins and outs of NACS, explaining how it affects car sales, maintenance, and even the overall dealership experience. From its origins to its implications, find out what you need to know about NACS and how it impacts your next car purchase."