The DOT members present did clarify that trailer drivers not engaged in business are not subject to Commercial Motor Vehicle (CMV) regulations, specifically where additional licensing is concerned. Regardless of weight, it was the interpretation of those present that going to an event that may issue prizes does not necessarily constitute commercial activity. As long as participation in the competition itself is not a component of the business with which that driver or the vehicle are regularly engaged, and expenses for said trip are not deducted for tax purposes, a CDL is not required to operate the CMV in question. Those interpretations, as are all CMV regulations, are specific to federal regulations, and state regulations may be less forgiving.