Making a U-turn over a yellow line will result in a deduction of 3 points. According to traffic regulations, crossing a solid double yellow line to make a U-turn constitutes a violation of prohibited traffic markings, which will incur a certain fine and a deduction of 3 points. Additionally, if a traffic accident occurs, the driver will bear primary responsibility. According to the relevant provisions of the "Road Traffic Safety Law of the People's Republic of China": Whether it is a single yellow line or a double yellow line, as long as it is a solid line, crossing it is strictly prohibited, such as for overtaking, turning, or making a U-turn. Under normal driving conditions, vehicles should not cross these lines. If the line is dashed, overtaking or making a U-turn is permitted, provided it is safe to do so. In the case of a double yellow line where one line is solid and the other is dashed, vehicles on the side with the dashed line may temporarily cross it for maneuvers like overtaking or turning. If a junction is marked with a "No Left Turn" line or has a "No Left Turn" sign, or if the leftmost lane at the junction is marked only for going straight, making a U-turn is prohibited. If a vehicle makes a left turn or U-turn at a junction where left turns are prohibited, or makes a U-turn in the leftmost lane marked only for going straight, even if one of the double yellow lines is dashed, it constitutes a violation of not driving in the designated lane. This will result in a fine and a deduction of 2 points, and the driver will bear primary responsibility in the event of a traffic accident.
