
Renewing a driver's license with color weakness is not possible. Individuals with color weakness have difficulty distinguishing traffic lights, which poses a safety hazard. Therefore, in general, color weakness indicates that the driver is not suitable for operating a motor vehicle and cannot renew their driver's license. To renew or validate a license, the following conditions must be met: The holder of a large bus, tractor, city bus, medium-sized bus, or large truck driver's license must have no demerit points in the current scoring cycle, or the holder of other types of driver's licenses must have fewer than 12 demerit points in the current scoring cycle; For holders of large bus, tractor, city bus, medium-sized bus, or large truck driver's licenses who have demerit points in a scoring cycle, or holders of other types of driver's licenses who have been involved in a traffic accident resulting in death with equal or greater responsibility but have not had their license revoked, they must have completed the required validation education; The applicant must have no outstanding traffic violations or unresolved traffic accidents; The applicant's physical condition must meet the requirements for driving; The driver's license must not be seized, detained, suspended, revoked, canceled, or invalidated by law.

I encountered the issue of color weakness when renewing my driver's license last time. During the medical exam, the doctor asked me to identify patterns in the color vision test book. To be honest, I had trouble distinguishing some of the colors clearly and got so nervous that my palms were sweating. Fortunately, the doctor was quite understanding and allowed me several attempts. Eventually, I correctly identified most of the patterns. After successfully obtaining my new license, I shared this experience with friends - as long as you can distinguish traffic light colors (not completely colorblind to red/green), it's generally manageable. In daily driving, I rely more on positional memory (like remembering red is on top, green at bottom). Actually, after driving with color weakness for over a decade, I've never made a mistake. The key is practicing to recognize traffic light patterns and their changing sequences.

The new guy at my workplace is also worried about color weakness affecting his driver's license renewal. Actually, the physical examination is quite humane now, and they don't disqualify you directly. During the test, they use specially designed color cards. For example, my colleague has blue-yellow color weakness, but as long as he can clearly distinguish the color hierarchy of traffic lights, he can pass. Before his license renewal recently, he specifically went to an ophthalmologist for auxiliary training. The doctor taught him a method to look at color saturation when the light is strong, and he passed the test smoothly. It's recommended to use a mobile app to simulate the test a few times before the renewal. Being able to distinguish the three colors of traffic lights is sufficient.

Last week, I accompanied my elderly neighbor to the DMV. At 68, he was concerned about his mild color blindness. The staff conducted an on-the-spot test: when the green traffic light lit up, they asked what fruit it resembled, and he answered 'green apple'; for the red light, he said 'dragon fruit flesh'. These relatable tests have a high pass rate. In real-world scenarios, the red light is positioned highest, the green light in the middle, and the yellow light flashes—memorizing their positions proves more reliable than relying solely on color recognition. He was so thrilled with his new license that he kept patting my shoulder in joy.

I remember the driving school instructor said that now for color weakness when renewing the license, they check discrimination ability rather than color accuracy. A friend with red-green color weakness passed the physical exam by describing the numerical patterns in composite images that combined colors and numbers. Nowadays, many testing devices use strong light to illuminate color blocks to enhance contrast. For manual transmission drivers, pay attention to identifying the color differences in gear indicator lights, and targeted training can be done in advance. The requirements for light vehicles are relatively more lenient.


