What does a yellow license plate below the license plate mean?

[Toby]

Yellow license plates are for medium-sized (and above) passenger and cargo vehicles, special operation vehicles, semi-trailer tractors, electric vehicles, full trailers, and semi-trailers not fixedly used with tractors. The plates are yellow with black characters. Below is relevant information about yellow license plates: 1. Yellow plate requirements: Any truck with a length exceeding 6 meters, a total mass of 4.5 tons (or more), or a passenger capacity of 20 people (or more) must display this plate. Therefore, even a sedan must use a yellow plate if its length exceeds the specified range. 2. Applicable vehicle types: ① Large vehicles (cargo trucks and special operation vehicles, oil tankers, semi-trailer tractors, electric vehicles); ② Trailer license plates (full trailers and semi-trailers not fixedly used with tractors); ③ Ordinary motorcycle license plates (ordinary two-wheel motorcycles and ordinary three-wheel motorcycles); ④ Low-speed vehicle license plates (low-speed cargo trucks, three-wheeled cars, and wheeled self-propelled machinery); ⑤ Ordinary M2 class light passenger vehicles, medium and large passenger vehicles, cargo trucks with a load capacity over 1.0 tons, training vehicle license plates (for training cars), and training motorcycle license plates (for training motorcycles).

[DelCody]

I've been driving for over twenty years, and it's common to see a yellow plate hanging below the car's license plate. That's usually a temporary license plate, a paper plate used when a new car hasn't received its official plate yet, making it convenient for traffic police to check. If you've ever bought a car or had it repaired, you might have encountered it. It should be affixed under the rear windshield or next to the license plate, but it can't be permanently hung, otherwise, it will block the main plate and result in a fine. I've seen people mistakenly think it's a decoration and refuse to remove it, causing trouble. In reality, temporary plates have a short validity period, and once you receive the official blue plate, it must be replaced. Don't forget to promptly visit the vehicle management office to complete the formalities. Road safety comes first, and even with a temporary plate, all rules must be followed. This thing is designed as a transition—don't let it become a source of violations.

[CarolineLee]

Thinking back to when I bought my first car, the salesperson gave me a yellow plate to attach below the license plate, explaining it was for temporary driving permits. The bright color of the paper made it easy to spot. At first, I didn't understand why it had to be placed at the bottom, but later I learned it was to avoid obscuring the license plate numbers, allowing the temporary serial number to be directly visible. Hanging it there made it convenient for law enforcement to check new or transferred vehicles, but it could only be used for a few days and had to be removed immediately once the official license plate was received. Once, a friend got a ticket for having an expired yellow plate still hanging, which was totally unfair. I advise new car owners to understand their situation clearly: if it's an old car with a yellow plate, there might be issues, so don't blindly copy others. The license plate system is quite complex, with varying policies in different regions, so it's best to consult a professional.

[LeAdelyn]

The yellow plate below the license plate is usually a temporary one. I've seen plenty of them after decades of driving. It's placed there as a transition before a new car gets its official plate or during repairs, making it easier to identify the vehicle's information. Don't underestimate this piece of paper—it's just as legal as a permanent plate, and its placement must comply with regulations—no random sticking. I remind everyone: never cover the numbers, or it will be considered a violation. Don't delay with temporary use; quickly complete the procedures to switch to a permanent plate for greater safety.