
No, the annual vehicle inspection mainly checks for changes in the vehicle's appearance and color, as well as significant alterations to the interior space (such as adding or removing seats to convert it into a cargo vehicle). Other modifications are generally not interfered with. Introduction to Vehicle Inspection: Vehicle annual inspection refers to a mandatory test for every vehicle that has obtained an official license plate and registration certificate. It is equivalent to an annual physical examination for the vehicle according to the "Technical Conditions for Motor Vehicle Operation Safety." Relevant Policies: Vehicle annual inspection is regulated in documents such as the "Implementation Regulations of the Road Traffic Safety Law." Before the inspection, some preparatory work is required (such as knowing relevant information, online appointment procedures, and issues to pay attention to with the vehicle) to ensure a smooth and successful inspection. There are initial and regular inspections, along with some related policies.

I remember spending half a day dealing with the window tint issue during last year's vehicle inspection. My car had dark tint film, which I usually found great for privacy and sun protection. But before the inspection, I heard it might not pass. So I went to a repair shop to have the light transmittance tested and found the front windshield film was only at 50%, far below the required 70% standard. The staff reminded me that since 2021, new regulations have become stricter—the front windshield and driver's side window films must meet the transmittance requirements, or you'll be asked to remove or replace them on the spot. I hesitated about removing it, thinking it would be a waste of money, but considering the hassle of failing the inspection and having to redo it, I gritted my teeth and removed it, then replaced it with a lighter tint. Looking back, it would have been much easier to check earlier. Now you can buy cheap little tools online to test it yourself for just a few dozen bucks. Plus, poor light transmittance is dangerous for night driving—my friend had an accident because of blurred vision. My advice: do a self-test before the inspection to avoid last-minute trouble.

I enjoy studying vehicle regulations, and the 2021 annual inspection indeed has requirements for window films. According to national standards, the light transmittance of the front windshield film must be ≥ 70%, and the driver's side must also meet the standard. Otherwise, the inspector will ask you to remove or replace it during the annual inspection. This isn't a one-size-fits-all rule but is primarily for safety considerations, as obscured vision increases the risk of accidents. I've examined various cases, and issues often arise with dark or reflective films. I recommend testing the film with a light transmittance meter before the inspection—you can buy one online for just a few dozen yuan. If it fails, address it beforehand. Regional differences are minimal, as the policy is largely uniform nationwide. Don't skimp on this small expense; removing and replacing it with a compliant film isn't a big loss. Driving safety is what matters most.

I was also concerned about the window tint during my vehicle inspection. The 2021 regulations require the front windshield tint to have a light transmittance of at least 70%, otherwise it may fail the inspection. I suggest you test the transmittance before the inspection—it's simple with tools: buy a portable tester or visit a shop, and the data will be clear. If it's too low, remove or replace it with a lighter tint promptly. Driving safety is at stake—poor visibility due to low transmittance is dangerous. Don't wait until inspection day, or you'll waste your trip and time.

From a safety perspective, window tinting is something to take seriously. During the 2021 vehicle inspection, any film that fails to meet the light transmittance standard must be removed, as a rate below 70% can impair driving visibility, especially at night or in rainy conditions, increasing the risk of accidents. I've learned that the national standards are strictly enforced to minimize such risks. Before the inspection, it's advisable to self-test the light transmittance using household tools—address any non-compliance immediately. Removing non-compliant film makes driving safer, as protecting yourself is what truly matters.

My friend got stuck during his vehicle inspection last year because of the window tint. He thought the dark tint looked cool, but its light transmittance was only 55%. The inspector straight up told him to remove it or fail the inspection. He had no choice but to peel it off on the spot and switch to a compliant one. Later, he shared that since 2021, the regulations have become stricter—windshield tints must have over 70% light transmittance, enforced uniformly nationwide. He suggests testing your tint's transmittance before the inspection to avoid last-minute hassles like his. Also, he mentioned having minor scratches while driving with overly dark tints—safety first.


