Need to have a license to drive anything under what engine displacement?

• A. Under 18
• B. Under 49cc
• C. Under 100cc
• D. Under 250cc

Answer: (B)

Engine displacement is used to determine how licensing rules apply to small motorized vehicles. In many safety and licensing standards, the boundary is set just below 50cc, so anything with an engine size of 49cc or smaller is treated as a motorized vehicle that requires at least a basic license to operate. This cutoff matters because it acknowledges that even very small engines can reach road speeds and share traffic with larger vehicles, making proper training and oversight important. The other numbers don’t match this regulatory line—the age-related option or much larger displacements aren’t the specific threshold used to decide licensure for these tiny machines. So the idea being tested is that licensure is required for anything under 49cc.