What is the frequency of the MOT test for vehicles over three years old?

The MOT test, or Ministry of Transport test, is an annual safety check for most vehicles in the UK that are over three years old. This yearly requirement is designed to ensure that vehicles on the road meet minimum safety and environmental standards. The idea behind the three-year mark is that new vehicles are generally reliable, but after that, wear and tear can start to affect their roadworthiness. The test covers a wide range of components, from brakes and lights to emissions, and helps to identify potential problems before they become dangerous. While it might seem like a hassle, the annual MOT test contributes significantly to road safety by ensuring that older vehicles are properly maintained and safe to drive. So, remembering that it's every year after the vehicle turns three is key to understanding why that's the correct answer.