Entry-level Driver Training (ELDT) Theory Instruction There is no required minimum number of instruction hours for theory training, but the training instructor must cover all the topics in curriculum. Behind the Wheel Range and Public Road Training There is no required minimum number of instruction hours required for BTW (range and public road) training, but the training instructor must cover all topics set forth in the BTW curriculum. BTW training must be conducted in a CMV for which a Class B CDL is required. The instructor must determine and document that each driver-trainee has demonstrated proficiency in all elements of the BTW curriculum unless otherwise noted. Consistent with the definitions of BTW range training and BTW public road training in § 380.605, a simulation device cannot be used to conduct such training or to demonstrate proficiency. Training instructors must document the total number of clock hours each driver-trainee spends to complete the BTW curriculum.