I went to TDA in Sacramento. They are a branch of Central Refrigerated and do the training Central requires if a student isn't able to do all their training in Fontana. Class was 4 weeks. First week was in the classroom and the other 3 weeks was at the yard. Overall, it was a good experience for me and I learned a lot. My only complaint was that the truck we used for our behind the wheel training was a 10 speed and when I got to Fontana, they had us do our testing on a 9 speed then we used 13 speeds when we went out on the road with our trainers.