This is an upgrade to category C1 and you will need to already have a C1 category on your licence before you can apply for this one. C1E allows you to drive a C1 category vehicle which is anything up to 7.5 tonnes, but this time with a trailer larger than 750kg.
If you have C1E you can drive up to a 7.5 tonne vehicle, with a larger trailer, as long as the combined weight of both vehicles, when fully laden, does not exceed 12 tonnes (12,000kg)
So, once you have successfully passed all your C1 tests, if you decide you want to tow a larger trailer then you will need to apply for this upgrade to your licence. The good news is that we can help with this and provide all the training you will need.