What is the difference between JAA, USS, and BCA auctions?

USS (Used Car System Society) is the largest Japanese auto auction network with the highest volume and broadest selection. JAA (Japan Auto Auctions) and BCA (Brand Combined Auctions) are smaller networks with their own regional lanes. Each auction uses a standardized inspection sheet format, though grading can vary slightly by appraiser. USS Tokyo and USS Nagoya are especially popular with brokers targeting volume and variety of sports models.