Which statement about NEVs is true?

The statement regarding NEVs (Neighborhood Electric Vehicles) that specifies they must have four wheels in contact with the ground is accurate. This requirement is part of the definition of what constitutes an NEV, which is intended for low-speed urban travel where they can coexist safely with pedestrian traffic and regular vehicles.

NEVs are designed to operate at a speed limit commonly not exceeding 25 mph to ensure safe use in residential areas and small communities. As for the other aspects, NEVs indeed require safety features, such as seat belts, to ensure passenger safety during operation, and they typically have emergency brakes to enhance safety. Moreover, while they are built to be stable, the requirement for four wheels is essential for maintaining balance and safe navigation on roadways. Thus, the specification of having four wheels is fundamental to their design and operational safety within their intended environment.