New rules for towing a trailer with a car from 16 December 2021 What changed on 16 December 2021 If you passed your car driving test from 1 January 1997. You are now allowed to tow trailers up to 3,500kg MAM. DVLA will update your driving licence record to show that you’re allowed to tow trailers. You’ll get category BE added to your driving licence when you get a new photocard driving licence. You Do not need to contact DVLA for this to happen. It will be done automatically. If you passed your car driving test before 1 January 1997, you are not affected by the change. Driving a car and trailer for the first time It’s best to take training from a driving instructor if you want to start driving a car and trailer. Please refer to Gov.Uk website for exact details.