On August 22, 2016 (81 FR 56745), as required by section 5404 of the Fixing America's Surface Transportation (FAST) Act, FMCSA proposed a pilot program to allow a limited number of individuals between the ages of 18 and 21 to operate commercial motor vehicles (CMVs) in interstate commerce if they have received specified heavy-vehicle driver training while in military service and are sponsored by a participating motor carrier. During the 3-year pilot program, the safety records of these younger drivers (the study group) would be compared to the records of a control group of comparable size, comprised of drivers who are 21 years of age or older and who have comparable training and experience in driving vehicles requiring a commercial driver's license (CDL). The control group would consist of volunteer drivers who meet specified criteria and are employed by a participating carrier. The comparison of the two groups' performance would help to determine whether age is a critical safety factor. FMCSA also proposes criteria for a working group to consult with the Agency in conducting, monitoring, and evaluating the pilot program. Further, the Agency outlines procedural steps and a data collection plan, and requests comments on these elements. Comments must be received on or before September 21, 2016.