TRB’s Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 5: Training of Commercial Motor Vehicle Drivers identifies and documents training strategies and curricula from existing commercial driver training programs, with the goal of identifying those commercial motor vehicle driver training tools and techniques that hold the greatest potential to improve commercial motor vehicle safety. A copy of this report can be found at https://onlinepubs.trb.org/Onlinepubs/ctbssp/ctbssp_syn_5.pdf.