Is it mandatory to wear seat belts in the back seat on highways?

[LaFernando]

The back seat passengers must wear seat belts on highways. The function of seat belts is: in the event of a vehicle collision or when emergency braking is applied, the pre-tensioning device will instantly retract, tightening the slack seat belt, firmly securing the passenger to the seat to prevent secondary collisions. Precautions for driving on highways include: 1. The driver and front-seat passenger should fasten their seat belts, and the driver must not answer phone calls; 2. Avoid sudden steering wheel movements while driving at high speeds; 3. Do not change lanes arbitrarily while driving. When changing lanes or overtaking the vehicle ahead, the turn signal must be activated in advance; 4. When overtaking, only the adjacent lane may be used. After overtaking, immediately return to the driving lane. Vehicles must not straddle or drive on the lane dividing line; 5. Do not reverse, drive in the opposite direction, make U-turns or turns by crossing the central divider, conduct test drives or drive training vehicles, or overtake or park on ramps; 6. Maintain a following distance of more than 100 meters. When the speed is below 100 kilometers per hour, the distance from the vehicle ahead in the same lane can be appropriately reduced, but the minimum distance must not be less than 50 meters.