Hi Dxx, thank you for your question. Yes, you may, just simply drive your vehicle down to the centre of your choice to get it inspected. You won't need to bring the inspection letter, as the centres will have your vehicle details at hand. Once inspection is completed, you may proceed renewing your road tax, given the fact that you also have a sufficient insurance coverage. More details can be found through our article here: https://www.motorist.sg/article/499/everything-you-need-to-know-about-vehicle-inspection-in-singapore