Commercial vehicle (GVW Class 3-8) registrations in the U.S. during the first nine months of 2010 were 269,650 units, up 9.6 percent over the same period last year, according to Polk, the recognized leader in data-driven solutions for the commercial vehicle industry. Additionally, the used commercial vehicle (GVW Class 3-8) market achieved a new record of registrations during a nine month timeframe at 524,500 units. This historic volume represents 66 percent of the commercial vehicle market and an increase of 18.7 percent over the same timeframe in 2009. Combined registrations of new and used commercial vehicles in the first nine months of 2010 were 794,200, representing a 15.5 percent increase over the same period last year.